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The ischium forms the lower and back part of the hip bone. It is divisible into three portions—a body and two rami. Latin is an ancient Indo-European language originally spoken in the region around Rome called Latium. ...
Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ...
The Superior gemellus muscle is a muscle of the human body. ...
Medical Subject Headings (MeSH) is a huge controlled vocabulary (or metadata system) for the purpose of indexing journal articles and books in the life sciences. ...
Body The Body (corpus oss. ischii).—The body enters into and constitutes a little more than two-fifths of the acetabulum. Categories: Anatomy stubs | Skeletal system ...
Its external surface forms part of the lunate surface of the acetabulum and a portion of the acetabular fossa.
Its internal surface is part of the wall of the lesser pelvis; it gives origin to some fibers of the Obturator internus.
Its anterior border projects as the posterior obturator tubercle; from its posterior border there extends backward a thin and pointed triangular eminence, the ischial spine, more or less elongated in different subjects. The external surface of the spine gives attachment to the Gemellus superior, its internal surface to the Coccygeus, Levator ani, and the pelvic fascia; while to the pointed extremity the sacrospinous ligament is attached. The Levator ani is a broad, thin muscle, situated on the side of the pelvis. ...
Above the spine is a large notch, the greater sciatic notch, converted into a foramen by the sacrospinous ligament; it transmits the Piriformis, the superior and inferior gluteal vessels and nerves, the sciatic and posterior femoral cutaneous nerves, the internal pudendal vessels, and nerve, and the nerves to the Obturator internus and Quadratus femoris. Of these, the superior gluteal vessels and nerve pass out above the Piriformis, the other structures below it. In anatomy, a foramen is any opening. ...
The piriformis (from Latin piriformis = pear shaped) is a muscle in the gluteal region of the lower limb. ...
The sciatic nerve is a large nerve that runs down the lower limb. ...
The piriformis (from Latin piriformis = pear shaped) is a muscle in the gluteal region of the lower limb. ...
Below the spine is a smaller notch, the lesser sciatic notch; it is smooth, coated in the recent state with cartilage, the surface of which presents two or three ridges corresponding to the subdivisions of the tendon of the Obturator internus, which winds over it. It is converted into a foramen by the sacrotuberous and sacrospinous ligaments, and transmits the tendon of the Obturator internus, the nerve which supplies that muscle, and the internal pudendal vessels and nerve.
The Superior Ramus The Superior Ramus (ramus superior oss. ischii; descending ramus).—The superior ramus projects downward and backward from the body and presents for examination three surfaces: external, internal, and posterior.
The external surface is quadrilateral in shape. It is bounded above by a groove which lodges the tendon of the Obturator externus; below, it is continuous with the inferior ramus; in front it is limited by the posterior margin of the obturator foramen; behind, a prominent margin separates it from the posterior surface. In front of this margin the surface gives origin to the Quadratus femoris, and anterior to this to some of the fibers of origin of the Obturator externus; the lower part of the surface gives origin to part of the Adductor magnus. The Obturator externus muscle is a muscle of the human body. ...
The Adductor magnus muscle is a muscle of the human body. ...
The internal surface forms part of the bony wall of the lesser pelvis. In front it is limited by the posterior margin of the obturator foramen. Below, it is bounded by a sharp ridge which gives attachment to a falciform prolongation of the sacrotuberous ligament, and, more anteriorly, gives origin to the Transversus perinæi and Ischiocavernosus. The ischiocavernosus muscle is a muscle just below the surface of the perineum, present in both men and women. ...
Posteriorly the ramus forms a large swelling, the tuberosity of the ischium, which is divided into two portions: a lower, rough, somewhat triangular part, and an upper, smooth, quadrilateral portion. Human male pelvis, viewed from front Human female pelvis, viewed from front The pelvis is the bony structure located at the base of the spine (properly known as the caudal end). ...
- The lower portion is subdivided by a prominent longitudinal ridge, passing from base to apex, into two parts; the outer gives attachment to the Adductor magnus, the inner to the sacrotuberous ligament.
- The upper portion is subdivided into two areas by an oblique ridge, which runs downward and outward; from the upper and outer area the Semimembranosus arises; from the lower and inner, the long head of the Biceps femoris and the Semitendinosus.
The Semimembranosus muscle is a muscle of the human body. ...
The biceps femoris, as its name implies, has two heads. ...
The Semitendinosus muscle is a muscle of the human body. ...
The Inferior Ramus The Inferior Ramus (ramus inferior oss. ischii; ascending ramus).—The inferior ramus is the thin, flattened part of the ischium, which ascends from the superior ramus, and joins the inferior ramus of the pubis—the junction being indicated in the adult by a raised line. Human male pelvis, viewed from front Human female pelvis, viewed from front The pelvis is the bony structure located at the base of the spine (properly known as the caudal end). ...
A man and a woman in the Pioneer plaque. ...
The outer surface is uneven for the origin of the Obturator externus and some of the fibers of the Adductor magnus; its inner surface forms part of the anterior wall of the pelvis. The Obturator externus muscle is a muscle of the human body. ...
The Adductor magnus muscle is a muscle of the human body. ...
Its medial border is thick, rough, slightly everted, forms part of the outlet of the pelvis, and presents two ridges and an intervening space.
The ridges are continuous with similar ones on the inferior ramus of the pubis: to the outer is attached the deep layer of the superficial perineal fascia (fascia of Colles), and to the inner the inferior fascia of the urogenital diaphragm.
If these two ridges be traced downward, they will be found to join with each other just behind the point of origin of the Transversus perinæi; here the two layers of fascia are continuous behind the posterior border of the muscle.
To the intervening space, just in front of the point of junction of the ridges, the Transversus perinæi is attached, and in front of this a portion of the crus penis vel clitoridis and the Ischiocavernosus. The ischiocavernosus muscle is a muscle just below the surface of the perineum, present in both men and women. ...
Its lateral border is thin and sharp, and forms part of the medial margin of the obturator foramen.
External links This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant. SUNY Downstate Medical Center is Brooklyns only academic medical center. ...
The public domain comprises the body of all creative works and other knowledge—writing, artwork, music, science, inventions, and others—in which no person or organization has any proprietary interest. ...
Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy, is an anatomy textbook widely regarded as a classic work on human anatomy. ...
| Human Bones | | | VERTEBRAL COLUMN: vertebrae (cervical - atlas - axis | thoracic | lumbar) | sacrum | coccyx THORAX: sternum | rib A typical adult human skeleton consists of the following 206 bones. ...
The vertebral column seen from the side Different regions (curvatures) of the vertebral column The vertebral column (backbone or spine) is a column of vertebrae situated in the dorsal aspect of the abdomen. ...
A diagram of a thoracic vertebra. ...
A cervical vertebra Cervical vertebrae (Vertebrae cervicales) are the smallest of the true vertebrae, and can be readily distinguished from those of the thoracic or lumbar regions by the presence of a foramen (hole) in each transverse process. ...
First cervical vertebra, or Atlas In anatomy, the Atlas (C1) is the topmost (first) cervical vertebra of the spine. ...
In anatomy, the second cervical vertebra (C2) of the spine is named the axis or epistropheus. ...
A typical thoracic vertebra The thoracic vertebrae (vertebrae thoracales) compose the middle segment of the vertebral column, between the cervical vertebrae and the lumbar vertebrae. ...
Categories: Anatomy stubs | Anatomy ...
Sacrum, pelvic surface The sacrum (os sacrum) is a large, triangular bone at the base of the vertebral column and at the upper and back part of the pelvic cavity, where it is inserted like a wedge between the two hip bones. ...
The coccyx is formed of four fused vertebrae. ...
Diagram of a tsetse fly, showing the head, thorax and abdomen The thorax is a division of an animals body that lies between the head and the abdomen. ...
Figure 1 : Anterior surface of sternum and costa cartilages. ...
The human rib cage. ...
cranial bones of SKULL: occipital | parietal | frontal | temporal | sphenoid | ethmoid A hippopotamus skull A skull, or cranium, is a bony structure of Craniates which serves as the general framework for a head. ...
The occipital bone [Fig. ...
The parietal bones (os parietale) are bones in the human skull and form, by their union, the sides and roof of the cranium. ...
The frontal bone (os frontale, TA: A02. ...
The temporal bones (os temporales) are situated at the sides and base of the skull. ...
Figure 1 : Sphenoid bone, upper surface. ...
Your skull is in your back (this is obviously not true, I was just testing the website to see if it really works) The ethmoid bone (os ethmoidale) is a bone in the skull that separates the nasal cavity from the brain. ...
facial bones of SKULL nasal | maxilla | lacrimal | zygomatic | palatine | inferior nasal conchae | vomer | mandible | hyoid A hippopotamus skull A skull, or cranium, is a bony structure of Craniates which serves as the general framework for a head. ...
The Nasal Bones (Ossa Faciei & Ossa Nasalia) are two small oblong bones, varying in size and form in different individuals; they are placed side by side at the middle and upper part of the face, and form, by their junction, the bridge of the nose. ...
The maxillae are the largest bones of the face, except for the mandible, and form, by their union, the whole of the upper jaw. ...
The lacrimal bone (Os Lacrimale), the smallest and most fragile bone of the face, is situated at the front part of the medial wall of the orbit . ...
The zygomatic bone (also known as the zygoma; Os Zygomaticum; Malar Bone) is a paired bone of the human skull. ...
The palatine bone is a bone situated at the back part of the nasal cavity between the maxilla and the pterygoid process of the sphenoid. ...
The inferior nasal concha (Concha Nasalis Inferior; Inferior Turbinated Bone) extends horizontally along the lateral wall of the nasal cavity [Fig. ...
The vomer bone is one of the unpaired facial bones of the skull. ...
The mandible (inferior maxillary bone) (together with the maxilla) is the largest and strongest bone of the face. ...
The hyoid bone (Os Hyoideum; Lingual Bone) is a bone in the human neck, not articulated to any other bone; it is supported by the muscles of the neck and in turn supports the root of the tongue. ...
UPPER EXTREMITY: clavicle | scapula | humerus | ulna | radius Left clavicle - from above Left clavicle - from below Collarbone (a bone) redirects here. ...
Left scapula - front view () Left scapula - rear view () In anatomy, the scapula, or shoulder blade, is the bone that connects the humerus (arm bone) with the clavicle (collar bone). ...
The humerus is a long bone in the arm or fore-legs (animals) that runs from the shoulder to the elbow. ...
The ulna (Elbow Bone) [Figs. ...
The radius and ulna of the left forearm, posterior surface. ...
carpus (scaphoid | lunate bone | triquetral | pisiform | trapezium | trapezoid | capitate | hamate) | metacarpals | phalanges (prox | int | dist) In Greek mythology, Carpus fruit was a son of Chloris and Boreas. ...
The scaphoid bone of the wrist is found on the thumb side of the hand, within the anatomical snuffbox. ...
The lunate bone (os lunatum; semilunar bone) is a bone in the human hand that may be distinguished by its deep concavity and crescentic outline. ...
The triquetral bone (also called triquetral, os triquetrum, cuneiform bone, pyramidal bone, cubital bone, os pyramidale, os triangulare, three-cornered bone, and triangular bone) is a type of carpal bone. ...
The left pisiform bone. ...
The trapezium is a bone in the human hand. ...
In human anatomy, the trapezoid bone (lesser multangular bone; os multangulum minus) is a bone in the hands. ...
The capitate bone (os capitatum; os magnum) is a bone in the human hand. ...
The hamate bone (os hamatum; unciform bone) is a bone in the human hand that may be readily distinguished by its wedge-shaped form, and the hook-like process which projects from its volar surface. ...
The metacarpus is the intermediate part of the hand skeleton that is located between the fingers distally and the carpus which forms the connection to the forearm. ...
Proximal phalanges are bones found in the limbs of most vertebrates. ...
Intermediate phalanges are bones found in the limbs of most vertebrates. ...
Distal phalanges are bones found in the limbs of most vertebrate skeletons. ...
LOWER EXTREMITY: pelvis (ilium, ischium, pubis, acetabulum) | femur (greater trochanter - lesser trochanter - linea aspera) | patella | fibula | tibia Human male pelvis, viewed from front Human female pelvis, viewed from front The pelvis is the bony structure located at the base of the spine (properly known as the caudal end). ...
The ilium is a bone that is part of the pelvis. ...
Categories: Anatomy stubs | Skeletal system ...
If you were looking for an organization, see FEMA. The femur or thigh bone is the longest, most voluminous and strongest bone of the human body. ...
Bones of the Hip In anatomy, the hip is the bony projection of the femur, known as the greater trochanter, and the overlying muscle and fat. ...
The linea aspera is a ridge of roughened surface on the posterior aspect of the femur, to which are attached muscles and intermusclular septa. ...
Left patella - anterior aspect Left patella - posterior aspect The patella or kneecap is a thick, triangular bone which articulates with the femur and covers and protects the front of the knee joint. ...
Figure 1 : Lower extremity of right fibula. ...
Figure 1 : Upper surface of right tibia. ...
tarsus (calcaneus | talus | navicular | cuneiform | cuboid ) | metatarsals | phalanges (prox | int | dist) FIG. 268– Bones of the right foot. ...
The calcaneus is the large bone making up the heel of the human foot. ...
FIG. 270– Left talus, from above. ...
The navicular bone (also called the navicular or scaphoid) is a small boat-shaped human bone of the tarsus. ...
There are three cuneiform bones in the human foot: the medial cuneiform, the intermediate cuneiform and the lateral cuneiform. ...
The cuboid bone is one of seven Tarsal bones. ...
The metatarsus consists of the five long bones of the foot, which are numbered from the medial side (ossa metatarsalia I.-V.); each presents for examination a body and two extremities. ...
Proximal phalanges are bones found in the limbs of most vertebrates. ...
Intermediate phalanges are bones found in the limbs of most vertebrates. ...
Distal phalanges are bones found in the limbs of most vertebrate skeletons. ...
OSSICLES: malleus | incus | stapes The ossicles (also called auditory ossicles) are the three smallest bones in the human body. ...
The malleus is hammer-shaped small bone or ossicle of the middle ear which connects with the incus and is attached to the inner surface of the eardrum. ...
The incus is the anvil-shaped small bone or ossicle in the middle ear. ...
stapes The stapes or stirrup is the stirrup-shaped small bone or ossicle in the middle ear which attaches the incus to the fenestra ovalis, the oval window which is adjacent to the vestibule of the inner ear. ...
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