|
In the circulatory system, a vein is a blood vessel that carries blood toward the heart. The vessels that carry blood away from the heart are known as arteries. The study of veins and diseases of the veins is known as phlebology and is a poorly defined discipline that is being developed through a variety of interdisciplinary scientists rather than having a specific set of specialists. Diagram of the human circulatory system. ...
The arterial system The blood vessels are part of the circulatory system and function to transport blood throughout the body. ...
Human blood smear: a - erythrocytes; b - neutrophil; c - eosinophil; d - lymphocyte. ...
The heart and lungs, from an older edition of Grays Anatomy. ...
Section of an artery For other uses, see Artery (disambiguation). ...
Cross section of a vein showing a valve which prevents backflow Diagram of a cross section of a vein with valves. ...
Function
Veins serve to return blood from organs to the heart. In systemic circulation oxygenated blood is pumped by the left ventricle through the arteries to the muscles and organs of the body, where its nutrients and gases are exchanged at capillaries, entering the veins filled with cellular waste and carbon dioxide. The de-oxygenated blood is taken by veins to the right atrium of the heart, which transfers the blood to the right ventricle, where it is then pumped to the pulmonary arteries and eventually lungs. In pulmonary circulation the pulmonary veins return oxygenated blood from the lungs to the left atrium, which empties into the left ventricle, completing the cycle of blood circulation. Systemic circulation is the portion of the cardiovascular system which carries oxygenated blood away from the heart, to the body, and returns oxygen-depleted blood back to the heart. ...
In the heart, a ventricle is a chamber which collects blood from an atrium (another heart chamber) and pumps it out of the heart. ...
Section of an artery For other uses, see Artery (disambiguation). ...
The word capillary is used to describe any very narrow tube or channel through which a fluid can pass. ...
Carbon dioxide is a chemical compound composed of one carbon and two oxygen atoms. ...
General Name, Symbol, Number oxygen, O, 8 Chemical series Nonmetals, chalcogens Group, Period, Block 16, 2, p Appearance colorless (gas) very pale blue (liquid) Atomic mass 15. ...
This page is about the muscular organ, the Heart. ...
The right ventricle is one of four chambers (two atria and two ventricles) in the human heart. ...
The heart and lungs (from an older edition of Grays Anatomy) The lung is an organ belonging to the respiratory system and interfacing to the circulatory system of air-breathing vertebrates. ...
Pulmonary circulation is the portion of the cardiovascular system which carries oxygen-depleted blood away from the heart, to the lungs, and returns oxygenated blood back to the heart. ...
The pulmonary veins carry oxygen rich blood from the lungs to the left atrium of the heart. ...
This page is about the muscular organ, the Heart. ...
The return of blood to the heart is assisted by the action of the skeletal-muscle pump which helps maintain the extremely low blood pressure of the venous system. Skeletal-muscle pump is the pumping effect of skeletal muscle on venous blood flow. ...
A sphygmomanometer, a device used for measuring blood pressure. ...
Anatomy Most veins have one-way valves called venous valves to prevent backflow caused by gravity. They also have a thick collagen outer layer, which helps maintain blood pressure and stop blood pooling. The hollow internal cavity in which the blood flows is called the lumen. Veins are surrounded by helical bands of smooth muscles which help maintain blood flow to the right atrium. The total capacity of the veins is more than sufficient to hold the entire blood volume of the body; this capacity is reduced through the constriction of smooth muscles, minimizing the cross-sectional area (and hence volume) of the individual veins and therefore total venous system. Tropocollagen triple helix. ...
A sphygmomanometer, a device used for measuring blood pressure. ...
artery anatomy, showing lumen The lumen is the interior of a vessel within the body, such as the small central space in an artery or vein, or any of their relating vessels through which blood flows. ...
Cultured Smooth muscle of the aorta. ...
Fainting can be caused by failure of the skeletal-muscular pump. Long periods of standing can result in blood pooling in the legs, with blood pressure too low to ascend to the heart. Neurogenic and Hypovolaemic shock can also cause fainting. In these cases the smooth muscles surrounding the veins become slack and fill with blood, absorbing a large portion of the total blood volume, keeping blood away from the brain and causing unconsciousness. The term Faint redirects here. ...
Neurogenic shock is shock caused by hiv aids the sudden loss of the sympathetic nervous system signals to the smooth muscle in vessel walls. ...
Shock is a serious medical condition where the tissue perfusion is insufficient to meet the required supply of oxygen and nutrients. ...
Common diseases Common diseases of the veins include varicose veins (treated through radio-frequency ablation, lasers and vein stripping) and deep vein thrombosis. Vein gymnastics in the barefoot park Dornstetten, Germany. ...
Somnoplasty is comprised of the Latin root somnus meaning sleep, and the Greek word plastia meaning molding or formation. ...
A LASER (acronym for Light Amplification by Stimulated Emission of Radiation) is an optical source that emits photons in a coherent beam. ...
Vein stripping is a surgical procedure done under general anaesthetic to remove varicose veins. ...
Deep-vein thrombosis, also known as deep-venous thrombosis or DVT, is the formation of a blood clot (thrombus) in a deep vein. ...
Notable veins and vein systems The pulmonary veins carry relatively oxygenated blood from the lungs to the heart. The superior and inferior vena cavae carry relatively deoxygenated blood from the upper and lower systemic circulations, respectively. The pulmonary veins carry oxygen rich blood from the lungs to the left atrium of the heart. ...
Superior vena cava - Wikipedia, the free encyclopedia /**/ @import /skins-1. ...
This article may be too technical for most readers to understand. ...
A portal venous system is a series of veins or venules that directly connect two capillary beds. Examples of such systems include the hepatic portal vein and hypophyseal portal system. In human anatomy, the portal venous system is the system of veins that drain into the portal vein. ...
This article or section does not cite its references or sources. ...
The portal vein is a major vein in the human body draining blood from the digestive system and its associated glands. ...
The hypophyseal portal system is the system of blood vessels that links the hypothalamus and the anterior pituitary. ...
List of important named veins The pulmonary veins carry oxygen rich blood from the lungs to the left atrium of the heart. ...
The portal vein is a major vein in the human body draining blood from the digestive system and its associated glands. ...
Superior vena cava - Wikipedia, the free encyclopedia /**/ @import /skins-1. ...
This article may be too technical for most readers to understand. ...
Grays Fig. ...
Great saphenous vein and its tributaries. ...
Names of important venule systems In human anatomy, the portal venous system is the system of veins that drain into the portal vein. ...
It has been suggested that Pulmonary loop be merged into this article or section. ...
In human anatomy, the systemic venous system is the veins that drain into the right atrium without passing through two vascular beds (i. ...
Medical interest
Venous valves prevent reverse blood flow. Veins are used medically as points of access to the blood stream, permitting the withdrawal of blood specimens (venipuncture) for testing purposes, and enabling the infusion of fluid, electrolytes, nutrition, and medications. The latter is called intravenous delivery. It can be done by an injection with a syringe, or by inserting a catheter (a flexible tube). In contrast to arterial blood which is uniform throughout the body, the blood removed from veins for testing can vary in its contents depending on the part of the body the vein drains. In example, blood drained from a working muscle will contain significantly less oxygen and glucose than blood drained from the liver. However the more blood from different veins mixes as it returns to the heart, the more homogeneous it becomes. Image File history File links Venous_valve. ...
Image File history File links Venous_valve. ...
Venipuncture using a vacutainer. ...
An electrolyte is a substance containing free ions which behaves as an electrically conductive medium. ...
A syringe consists of a plunger fitted to a tube, called the barrel, which has a small opening on one end. ...
Catheter disassembled In medicine, a catheter is a tube that can be inserted into a body cavity duct or vessel. ...
Glucose (Glc), a monosaccharide (or simple sugar), is the most important carbohydrate in biology. ...
The liver is an organ in some animals, including mammals (and therefore humans), birds, and reptiles. ...
If an intravenous catheter has to be inserted, for most purposes this is done into a peripheral vein (a vein near the surface of the skin in the hand or arm, or less desirably, the leg.) Some highly concentrated fluids or irritating medications must flow into the large central veins, which are sometimes used when peripheral access cannot be obtained. Catheters can be threaded into the superior vena cava for these uses: if long term use is thought to be needed, a more permanent access point can be inserted surgically. Human right hand The hands (med. ...
In anatomy, an arm is one of the upper limbs of a two-legged animal. ...
In common usage, a human leg is the lower limb of the body, extending from the hip to the ankle, and including the thigh, the knee, and the cnemis. ...
Superior vena cava - Wikipedia, the free encyclopedia /**/ @import /skins-1. ...
The precise location of veins is much more variable from person to person than that of arteries.
Color The blood carried by veins is dark red due to its high percentage of CO2 as it returns to the heart (in contrast to the high levels of O2 in arterial blood, which is bright red). Veins appear blue because the subcutaneous fat in the skin absorbs lower-frequency light, permitting only the highly energetic blue wavelengths to penetrate and reflect off human skin. Carbon dioxide is a chemical compound composed of one carbon and two oxygen atoms. ...
General Name, Symbol, Number oxygen, O, 8 Chemical series Nonmetals, chalcogens Group, Period, Block 16, 2, p Appearance colorless (gas) very pale blue (liquid) Atomic mass 15. ...
The distribution of the bloodvessels in the skin of the sole of the foot. ...
See also Wikipedia does not have an article with this exact name. ...
Wiktionary is a multilingual, Web-based project to create a free content dictionary, available in over 150 languages. ...
Peripheral Veins are the veins that are the veins leading back towards the heart from the organs below the stomach and also from the muscles in the arms, hands, legs and feet. ...
Deep vein is a term used to describe a vein that is deep in the body. ...
Deep-vein thrombosis, also known as deep-venous thrombosis or DVT, is the formation of a blood clot (thrombus) in a deep vein. ...
This page may meet Wikipedias criteria for speedy deletion. ...
Superficial vein is a term used to describe a vein that is close to the surface of the body. ...
Varicose veins are veins on the leg which are large, twisted, and ropelike, and can cause pain, swelling, or itching. ...
External Links exterior of the head and face: frontal - supraorbital - angular - facial - common facial (superior labial, inferior labial) - deep facial - superficial temporal - retromandibular - pterygoid - internal maxillary - posterior auricular - occipital Head and neck anatomy is a specialized study of the human body quite frequently studied in depth by surgeons, dentist, and dental technicians. ...
The frontal vein begins on the forehead in a venous plexus which communicates with the frontal branches of the superficial temporal vein. ...
The supraorbital vein begins on the forehead where it communicates with the frontal branch of the superficial temporal vein. ...
The angular vein formed by the junction of the frontal and supraorbital veins, runs obliquely downward, on the side of the root of the nose, to the level of the lower margin of the orbit, where it becomes the anterior facial vein. ...
The anterior facial vein (facial vein) commences at the side of the root of the nose, and is a direct continuation of the angular vein. ...
The anterior facial vein unites with the posterior facial vein to form the common facial vein, which crosses the external carotid artery and enters the internal jugular vein at a variable point below the hyoid bone. ...
The superior labial vein is the vein receiving blood from the upper lip. ...
The inferior labial vein is the vein receiving blood from the lower lip. ...
The anterior facial vein receives a branch of considerable size, the deep facial vein, from the pterygoid venous plexus. ...
The superficial temporal vein begins on the side and vertex of the skull in a plexus which communicates with the frontal and supraorbital veins, with the corresponding vein of the opposite side, and with the posterior auricular and occipital veins. ...
The retromandibular vein (temporomaxillary vein, posterior facial vein), formed by the union of the superficial temporal and internal maxillary veins, descends in the substance of the parotid gland, superficial to the external carotid artery but beneath the facial nerve, between the ramus of the mandible and the Sternocleidomastoideus muscle. ...
The pterygoid plexus is of considerable size, and is situated between the Temporalis and Pterygoideus externus, and partly between the two Pterygoidei. ...
The internal maxillary vein is a short trunk which accompanies the first part of the internal maxillary artery. ...
The posterior auricular vein begins upon the side of the head, in a plexus which communicates with the tributaries of the occipital, and superficial temporal veins. ...
The occipital vein begins in a plexus at the back part of the vertex of the skull. ...
veins of the neck: jugular vein (external, posterior external, anterior, internal) - inferior petrosal sinus - lingual - pharyngeal - superior thyroid - middle thyroid - vertebral - deep cervical Jugular vein - Wikipedia, the free encyclopedia /**/ @import /skins-1. ...
The external and internal jugular veins are veins that bring deoxygenated blood from the head back to the heart via the superior vena cava. ...
The posterior external jugular vein begins in the occipital region and returns the blood from the skin and superficial muscles in the upper and back part of the neck, lying between the Splenius and Trapezius. ...
The anterior jugular vein begins near the hyoid bone by the confluence of several superficial veins from the submaxillary region. ...
The external and internal jugular veins are veins that bring deoxygenated blood from the head back to the heart via the superior vena cava. ...
Several large dural sinuses, such as the superior and inferior sagittal sinuses, are visible with a sagittal cut through the brain. ...
The Lingual Veins begin on the dorsum, sides, and under surface of the tongue, and, passing backward along the course of the lingual artery, end in the internal jugular vein. ...
The Pharyngeal Veins begin in the pharyngeal plexus on the outer surface of the pharynx, and, after receiving some posterior meningeal veins and the vein of the pterygoid canal, end in the internal jugular. ...
The Superior Thyroid Vein begins in the substance and on the surface of the thyroid gland, by tributaries corresponding with the branches of the superior thyroid artery, and ends in the upper part of the internal jugular vein. ...
This article or section is in need of attention from an expert on the subject. ...
The vertebral vein is formed in the suboccipital triangle, from numerous small tributaries which spring from the internal vertebral venous plexuses and issue from the vertebral canal above the posterior arch of the atlas. ...
The Deep Cervical Vein (posterior vertebral or posterior deep cervical vein) accompanies its artery between the Semispinales capitis and colli. ...
diploic/veins of the brain: cerebral - superior cerebral - middle cerebral - inferior cerebral - basal - internal cerebral - great cerebral - superior cerebellar - inferior cerebellar The diploic veins are found in the skull, and drain the diploic space. ...
The cerebral veins are divisible into external and internal (internal cerebral veins) groups according as they drain the outer surfaces or the inner parts of the hemispheres. ...
The Superior Cerebral Veins, eight to twelve in number, drain the superior, lateral, and medial surfaces of the hemispheres, and are mainly lodged in the sulci between the gyri, but some run across the gyri. ...
The middle cerebral vein (superficial Sylvian vein) begins on the lateral surface of the hemisphere, and, running along the lateral cerebral fissure, ends in the cavernous or the sphenoparietal sinus. ...
The Inferior Cerebral Veins, of small size, drain the under surfaces of the hemispheres. ...
The basal vein is formed at the anterior perforated substance by the union of (a) a small anterior cerebral vein which accompanies the anterior cerebral artery, (b) the deep middle cerebral vein (deep Sylvian vein), which receives tributaries from the insula and neighboring gyri, and runs in the lower part...
The internal cerebral veins (veins of Galen; deep cerebral veins) drain the deep parts of the hemisphere and are two in number; each is formed near the interventricular foramen by the union of the terminal and choroid veins. ...
The vein of Galen (VG), also known as the great cerebral vein, is one of the large blood vessels in the skull draining the cerebrum (brain). ...
The superior cerebellar veins pass partly forward and medialward, across the superior vermis, to end in the straight sinus and the internal cerebral veins, partly lateralward to the transverse and superior petrosal sinuses. ...
The inferior cerebellar veins are of large size, end in the transverse, superior petrosal, and occipital sinuses. ...
sinuses of the dura mater: superior sagittal - inferior sagittal - straight - transverse - sigmoid - petrosquamous - occipital - confluence - cavernous - sphenoparietal The dural venous sinuses (also called dural sinuses or cerebral sinuses) are venous channels found between layers of dura mater in the brain. ...
The superior sagittal sinus lies within the superior border of the falx cerebri, a two-layered dural structure separating the two cerebral hemispheres. ...
The inferior sagittal sinus courses along the inferior border of the falx cerebri, superior to the corpus callosum. ...
The straight sinus lies in the falx cerebri superior to the tentorium cerebelli, a bilayer of dura mater superior to the cerebellum. ...
For the transverse pericardial sinus, see pericardial sinus. ...
Each sigmoid sinus begins beneath the temporal bone and follows a tortuous course to the jugular foramen, at which point the sinus becomes continuous with the internal jugular vein. ...
The petrosquamous sinus, when present, runs backward along the junction of the squama and petrous portion of the temporal, and opens into the transverse sinus. ...
The occipital sinus courses through falx cerebelli, inferior to the straight sinus. ...
The superior sagittal sinus, straight sinus, and occipital sinus connect at a series of channels that comprise the confluence of sinuses, which is found beneath the occipital protuberance of the skull. ...
The cavernous sinus is a large channel of venous blood creating a sinus cavity bordered by the sphenoid bone and the temporal bone of the skull. ...
The cavernous sinus receives the superior ophthalmic vein through the superior orbital fissure, some of the cerebral veins, and also the small sphenoparietal sinus, which courses along the under surface of the small wing of the sphenoid. ...
ophthalmic: superior ophthalmic - nasofrontal - inferior ophthalmic - intercavernous sinuses - superior petrosal sinus - basilar - emissary Superior ophthalmic vein - Wikipedia, the free encyclopedia /**/ @import /skins-1. ...
The Nasofrontal vein is a vein in the eye which drains to the superior ophthalmic vein. ...
The Inferior Ophthalmic Vein begins in a venous net-work at the forepart of the floor and medial wall of the orbit; it receives some veins from the Rectus inferior, Obliquus inferior, lacrimal sac and eyelids, runs backward in the lower part of the orbit and divides into two branches. ...
The intercavernous sinuses are two in number, an anterior and a posterior, and connect the two cavernous sinuses across the middle line. ...
The superior petrosal sinuses (or greater petrosal veins) deliver blood to the transverse sinuses, while the inferior petrosal sinuses deliver blood directly to the internal jugular veins or indirectly via the sigmoid sinuses. ...
The basilar plexus (transverse or basilar sinus) consists of several interlacing venous channels between the layers of the dura mater over the basilar part of the occipital bone, and serves to connect the two inferior petrosal sinuses. ...
The emissary veins are valveless veins which normally drain the intracranial venous sinuses to veins on the outside of the skull. ...
internal auditory veins The veins of the vestibule and semicircular canals accompany the arteries, and, receiving those of the cochlea at the base of the modiolus, unite to form the internal auditory veins (or veins of labyrinth) which end in the posterior part of the superior petrosal sinus or in the transverse sinus. ...
superficial (dorsal venous network of hand - cephalic - median cubital - accessory cephalic - basilic - median antebrachial) In humans, the upper limb is an anatomical term for the limb that is attached to the pectoral girdle. ...
The dorsal venous network of the hand is a network of veins formed by the dorsal metacarpal veins. ...
This vein is located in the superficial fascia along the anterolateral surface of the biceps brachii muscle and is often visible through the skin. ...
Superficial veins of the upper limb. ...
The accessory cephalic vein arises either from a small tributory plexus on the back of the forearm or from the ulnar side of the dorsal venous net-work; it joins the cephalic below the elbow. ...
In human anatomy, the basilic vein is a superficial vein of the upper limb. ...
The median antebrachial vein drains the venous plexus on the volar surface of the hand. ...
deep (radial - ulnar - brachial - axillary) In anatomy, the radial veins are venae comitantes that accompany the radial artery through the back of the hand and the lateral aspect of the forearm. ...
In anatomy, the ulnar veins are venae comitantes for the ulnar artery. ...
In human anatomy, the brachial veins are venae comitantes of the brachial artery in the arm proper. ...
Anterior view of right upper limb and thorax - axillary vein and the distal part of the basilic vein and cephalic vein. ...
v • d • e Veins of the torso heart: coronary sinus - great cardiac - left marginal - small cardiac - right marginal - middle cardiac - posterior of the left ventricle - oblique of the left atrium - anterior cardiac The human torso Torso is an anatomical term for the greater part of the human body without the head and limbs. ...
An aortic sinus is one of the anatomic dilations of the ascending aorta which occurs at the aortic root, i. ...
The Great Cardiac Vein (left coronary vein) begins at the apex of the heart and ascends along the anterior longitudinal sulcus to the base of the ventricles. ...
The great cardiac vein receives tributaries from the left atrium and from both ventricles: one, the left marginal vein, is of considerable size, and ascends along the left margin of the heart. ...
The small cardiac vein (right coronary vein) runs in the coronary sulcus between the right atrium and ventricle, and opens into the right extremity of the coronary sinus. ...
The right marginal vein ascends along the right margin of the heart and joins the small cardiac vein in the coronary sulcus, or opens directly into the right atrium. ...
The middle cardiac vein commences at the apex of the heart, ascends in the posterior longitudinal sulcus, and ends in the coronary sinus near its right extremity. ...
The Posterior Vein of the Left Ventricle runs on the diaphragmatic surface of the left ventricle to the coronary sinus, but may end in the great cardiac vein. ...
The Oblique Vein of the Left Atrium (oblique vein of Marshall) is a small vessel which descends obliquely on the back of the left atrium and ends in the coronary sinus near its left extremity; it is continuous above with the ligament of the left vena cava (lig. ...
The anterior cardiac veins (or anterior veins of right ventricle), comprising three or four small vessels which collect blood from the front of the right ventricle and open into the right atrium; the right marginal vein frequently opens into the right atrium, and is therefore sometimes regarded as belonging to...
thorax: subclavian - brachiocephalic - internal thoracic - superior phrenic - inferior thyroid - intercostal (supreme, superior, posterior) - superior vena cava - azygos - hemiazygos - accessory hemiazygos - bronchial - pulmonary - lateral thoracic - thoracoepigastric The subclavian vein is a continuation of the axillary vein and runs from the outer border of the first rib to the medial border of anterior scalene muscle. ...
The Brachiocephalic vein is also known as the innominate vein, the left and right brachiocephalic veins in the upper chest are formed by the union of each corresponding jugular vein and subclavian vein. ...
Veins of the thorax and abdomen. ...
The superior phrenic vein, i. ...
The inferior thyroid veins two, frequently three or four, in number, arise in the venous plexus on the thyroid gland, communicating with the middle and superior thyroid veins. ...
The intercostal veins are a group of veins which drain the area between the ribs (costae), called the intercostal space. ...
The supreme intercostal vein (highest intercostal vein) is a paired vein that drains the first intercostal space on its corresponding side. ...
This article or section does not cite its references or sources. ...
The posterior intercostal veins are veins that drain the intercostal spaces posteriorly. ...
Superior vena cava - Wikipedia, the free encyclopedia /**/ @import /skins-1. ...
The azygos vein is so named because it is unpaired, having no matching vein on the left side of the body. ...
The Hemiazygos Vein (vena azygos minor inferior) begins in the left ascending lumbar or renal vein. ...
The accessory hemiazygos vein (vena azygos minor superior) is a vein on the left side of the vertebral column that generally drains the fifth through eighth intercostal spaces on the left side of the body. ...
The bronchial veins are small vessels that return blood from the larger bronchi and structures at the roots of the lungs. ...
The pulmonary veins carry oxygen rich blood from the lungs to the left atrium of the heart. ...
The lateral thoracic vein is a tributary of the axillary vein. ...
A vein, named the thoracoepigastric, runs along the lateral aspect of the trunk between the superficial epigastric vein below and the lateral thoracic vein above and establishes an important communication between the femoral and axillary veins. ...
vertebral column: external vertebral venous plexuses - internal vertebral venous plexuses - basivertebral - intervertebral - of the medulla spinalis The external vertebral venous plexuses (extraspinal veins) best marked in the cervical region, consist of anterior and posterior plexuses which anastomose freely with each other. ...
The internal vertebral venous plexuses (intraspinal veins) lie within the vertebral canal between the dura mater and the vertebrae, and receive tributaries from the bones and from the medulla spinalis. ...
The basivertebral veins emerge from the foramina on the posterior surfaces of the vertebral bodies. ...
The intervertebral veins accompany the spinal nerves through the intervertebral foramina; they receive the veins from the medulla spinalis, drain the internal and external vertebral plexuses and end in the vertebral, intercostal, lumbar, and lateral sacral veins, their orifices being provided with valves. ...
The veins of the medulla spinalis (spinal veins, veins of the spinal cord) are situated in the pia mater and form a minute, tortuous, venous plexus. ...
abdomen and pelvis: external iliac - inferior epigastric - internal iliac - superior gluteal - inferior gluteal - internal pudendal - hemorrhoidal - superficial of penis - deep of penis - common iliac - inferior vena cava - testicular - ovarian - renal - suprarenal - inferior phrenic - hepatic Veins of the abdomen and lower limb - inferior vena cava, common iliac vein, external iliac vein, internal iliac vein, femoral vein and their tributaries. ...
Right inferior epigastric vein - view from inside of abdomen. ...
The internal iliac vein (hypogastric vein) begins near the upper part of the greater sciatic foramen, passes upward behind and slightly medial to the hypogastric artery and, at the brim of the pelvis, joins with the external iliac to form the common iliac vein. ...
The Superior Gluteal Veins (gluteal veins) are venæ comitantes of the superior gluteal artery; they receive tributaries from the buttock corresponding with the branches of the artery, and enter the pelvis through the greater sciatic foramen, above the Piriformis, and frequently unite before ending in the hypogastric vein. ...
The Inferior Gluteal Veins (sciatic veins), or venæ comitantes of the inferior gluteal artery, begin on the upper part of the back of the thigh, where they anastomose with the medial femoral circumflex and first perforating veins. ...
The Internal Pudendal Veins (internal pudic veins) are the venæ comitantes of the internal pudendal artery. ...
The hemorrhoidal plexus (or rectal venous plexus) surrounds the rectum, and communicates in front with the vesical plexus in the male, and the uterovaginal plexus in the female. ...
The superficial dorsal vein of the penis drains the prepuce and skin of the penis, and, running backward in the subcutaneous tissue, inclines to the right or left, and opens into the corresponding superficial external pudendal vein, a tributary of the great saphenous vein. ...
The deep dorsal vein of the penis lies beneath the deep fascia of the penis; it receives the blood from the glans penis and corpora cavernosa penis and courses backward in the middle line between the dorsal arteries; near the root of the penis it passes between the two parts...
The common iliac veins are formed by the external iliac veins and internal iliac veins and together, in the abdomen at about the level of the umbilicus, form the inferior vena cava. ...
This article may be too technical for most readers to understand. ...
It has been suggested that this article or section be merged into Gonadal vein. ...
The ovarian veins correspond with the spermatic in the male; they form a plexus in the broad ligament near the ovary and uterine tube, and communicate with the uterine plexus. ...
Kidneys viewed from behind with spine removed The kidneys are bean-shaped excretory organs in vertebrates. ...
The Suprarenal Veins are two in number: the right ends in the inferior vena cava. ...
The Inferior Phrenic Veins follow the course of the inferior phrenic arteries; the right ends in the inferior vena cava; the left is often represented by two branches, one of which ends in the left renal or suprarenal vein, while the other passes in front of the esophageal hiatus in...
Superior vena cava, inferior vena cava (IVC), azygos vein and their tributaries. ...
portal system: portal - splenic - short gastric - left gastroepiploic - pancreatic - inferior mesenteric - superior rectal - superior mesenteric - right gastroepiploic - pancreaticoduodenal - cystic - paraumbilical In human anatomy, the portal venous system is the system of veins that drain into the portal vein. ...
The portal vein is a major vein in the human body draining blood from the digestive system and its associated glands. ...
The portal vein and its tributaries - the largest are the superior mesenteric vein and splenic vein. ...
The short gastric veins, four or five in number, drain the fundus and left part of the greater curvature of the stomach, and pass between the two layers of the gastrolienal ligament to end in the lienal vein or in one of its large tributaries. ...
The left gastroepiploic vein receives branches from the antero-superior and postero-inferior surfaces of the stomach and from the greater omentum; it runs from right to left along the greater curvature of the stomach and ends in the commencement of the lienal vein. ...
The pancreatic veins consist of several small vessels which drain the body and tail of the pancreas, and open into the trunk of the lienal vein. ...
The portal vein and its tributaries. ...
The inferior mesenteric vein begins in the rectum as the superior rectal vein (superior hemorrhoidal vein), which has its origin in the hemorrhoidal plexus, and through this plexus communicates with the middle and inferior hemorrhoidal veins. ...
The portal vein and its tributaries. ...
The right gastroepiploic vein (right gastroomental vein) receives branches from the greater omentum and from the lower parts of the antero-superior and posteroinferior surfaces of the stomach; it runs from left to right along the greater curvature of the stomach between the two layers of the greater omentum. ...
The pancreaticoduodenal veins accompany their corresponding arteries; the lower of the two frequently joins the right gastroepiploic vein. ...
The cystic vein drains the blood from the gall-bladder, and, accompanying the cystic duct, usually ends in the right branch of the portal vein. ...
Paraumbilical veins - Wikipedia, the free encyclopedia /**/ @import /skins-1. ...
fetal: ductus venosus - umbilical In the fetus, the ductus venosus connects the left umbilical vein with the upper inferior vena cava. ...
Fetal circulation; the umbilical vein is the large, red vessel at the far left The umbilical vein is a blood vessel present during fetal development that carries oxygenated blood from the placenta to the growing fetus. ...
thigh femoral - profunda femoris - popliteal In common usage, a human leg is the lower limb of the body, extending from the hip to the ankle, and including the thigh, the knee, and the cnemis. ...
Grays Fig. ...
Profunda femoris vein is a large vein in the thigh. ...
The politeal vein parrallels the popliteal artery but carries the blood from the knee joint and muscles in the thigh and calf back to the heart. ...
deep leg fibular - anterior tibial - posterior tibial - superficial leg small saphenous - great saphenous (extends to thigh) In anatomy, the fibular veins (also known as the peroneal veins) are accompanying veins (venae comitantes) of the fibular artery. ...
In human anatomy, the anterior tibial vein of the lower limb carries blood from the anterior compartment of the leg to the popliteal vein which is forms when it joins with the posterior tibial vein. ...
In anatomy, the posterior tibial vein of the lower limb carries blood from the posterior compartment and plantar surface of the foot to the popliteal vein which is forms when it joins with the anterior tibial vein. ...
Small saphenous vein and its tributaries. ...
Great saphenous vein and its tributaries. ...
foot dorsal arch - dorsal digital - plantar arch - plantar metatarsal - common digital - plantar digital The dorsal venous arch of the foot is a superficial vein that connects the small saphenous vein and the great saphenous vein. ...
On the dorsum of the foot the dorsal digital veins receive, in the clefts between the toes, the intercapitular veins from the plantar cutaneous venous arch and join to form short common digital veins. ...
The four metatarsal veins run backward in the metatarsal spaces, communicate, by means of perforating veins, with the veins on the dorsum of the foot, and unite to form the plantar venous arch (or deep plantar venous arch) which lies alongside the plantar arterial arch. ...
The plantar metatarsal veins run backward in the metatarsal spaces and communicate, by means of perforating veins, with the veins on the dorsum of the foot, and unite to form the deep plantar venous arch which lies alongside the plantar arterial arch. ...
On the dorsum of the foot the dorsal digital veins receive, in the clefts between the toes, the intercapitular veins from the plantar cutaneous venous arch and join to form short common digital veins which unite across the distal ends of the metatarsal bones in a dorsal venous arch. ...
The plantar digital veins arise from plexuses on the plantar surfaces of the digits, and, after sending intercapitular veins to join the dorsal digital veins, unite to form four metatarsal veins; these run backward in the metatarsal spaces, communicate, by means of perforating veins, with the veins on the dorsum...
Blood | Heart → Aorta → Arteries → Arterioles → Capillaries → Venules → Veins → Vena cava → Heart → Pulmonary arteries → Lungs → Pulmonary vein Diagram of the human circulatory system. ...
Human blood smear: a - erythrocytes; b - neutrophil; c - eosinophil; d - lymphocyte. ...
The heart and lungs, from an older edition of Grays Anatomy. ...
The largest artery in the human body, the aorta originates from the left ventricle of the heart and brings oxygenated blood to all parts of the body in the systemic circulation. ...
Section of an artery For other uses, see Artery (disambiguation). ...
An arteriole is a blood vessel that extends and branches out from an artery and leads to capillaries. ...
The word capillary is used to describe any very narrow tube or channel through which a fluid can pass. ...
A venule is a small blood vessel that allows deoxygenated blood to return from the capillary beds to the larger blood vessels called veins. ...
The brachiocephalic veins, superior vena cava, inferior vena cava, azygos vein and their tributaries The superior and inferior venae cavae are the veins that return the blood from the body into the heart. ...
The heart and lungs, from an older edition of Grays Anatomy. ...
The pulmonary arteries carry blood from the heart to the lungs. ...
The human lungs are the human organs of respiration. ...
The pulmonary veins carry oxygen rich blood from the lungs to the left atrium of the heart. ...
|