NationMaster - Encyclopedia: Flexor retinaculum of the hand

The flexor retinaculum (transverse carpal ligament, or anterior annular ligament) is a strong, fibrous band, which arches over the carpus, converting the deep groove on the front of the carpal bones into a tunnel, the carpal tunnel, through which the Flexor tendons of the digits and the median nerve pass. Latin is an ancient Indo-European language originally spoken in Latium, the region immediately surrounding Rome. ... Elseviers logo. ... In Greek mythology, Carpus fruit was a son of Chloris and Boreas. ... In human anatomy, the carpal bones are the bones of the human wrist. ... In the human wrist there is a sheath of tough connective tissue which envelopes and protects one nerve (median nerve) and tendons, which attach muscles to the wrist and hand bones. ... Diagram from Grays anatomy, depicting the peripheral nerves of the upper extremity, amongst others the median nerve The median nerve is a nerve that runs down the arm and forearm. ...

It is attached, medially, to the pisiform and the hamulus of the hamate bone; laterally, to the tubercle of the scaphoid, and to the medial part of the volar surface and the ridge of the greater multangular, otherwise known as the trapezium (bone). The pisiform bone (also called pisiform or pisiforme os or lentiform bone) is a small knobbly, pea-shaped wrist bone. ... 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 scaphoid bone of the wrist is found on the thumb side of the hand, within the anatomical snuffbox. ... The trapezium is a bone in the human hand. ...

It is continuous, above, with the volar carpal ligament; and below, with the palmar aponeurosis. It is crossed by the ulnar vessels and nerve, and the cutaneous branches of the median and ulnar nerves. The palmar aponeurosis (palmar fascia) invests the muscles of the palm, and consists of central, lateral, and medial portions. ... In human anatomy, the ulnar nerve is a nerve which runs from the shoulder to the hand, at one part running near the ulna bone. ...

At its lateral end is the tendon of the Flexor carpi radialis, which lies in the groove on the greater multangular between the attachments of the ligament to the bone. In anatomy, flexor carpi radialis is a muscle of the human forearm that acts to flex and abduct the hand. ...

On its volar surface the tendons of the Palmaris longus and Flexor carpi ulnaris are partly inserted; below, it gives origin to the short muscles of the thumb and little finger. OriginMedial epicondyle of humerus InsertionDistal half of the flexor retinaculum and palmar aponeurosis Innervation Median nerve(C7 and C8) Action Flexes hand(at wrist)and tightens palmar aponeurosis. ... In anatomy, flexor carpi ulnaris muscle is a muscle of the human forearm that acts to flex and adduct the hand. ... In human anatomy, the thumb is the first digit on a hand. ... Little finger The little finger, called the pinky in American English from the Dutch word pink, meaning little finger, is the most ulnar and usually smallest finger of the human hand, opposite the thumb, next to the ring finger. ...

See also

The extensor retinaculum (dorsal carpal ligament) is an anatomical term for the thickened part of the antebrachial fascia that holds the tendons of the extensor muscles in place. ...

Additional images

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. The State University of New York Health Science Center at Brooklyn, better known as SUNY Downstate Medical Center, is an academic medical center and is the only one of its kind in the Borough of Brooklyn in New York City. ... The University of Kansas (often referred to as KU or Kansas) is an institution of higher learning located in Lawrence, Kansas. ... Georgetown University, incorporated as the The President and Directors of the College of Georgetown, is a private university in the United States, located in Georgetown, a historic neighborhood of Washington, D.C. Founded on January 23, 1789 by Archbishop John Carroll, it is both the oldest Roman Catholic and oldest... 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. ... An illustration from the 1918 edition 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. ...

v • d • e

General anatomy of upper limbs

Arm: Clavipectoral triangle - Quadrangular space - Triangular space - Axilla - Axillary sheath - Pectoral girdle - Brachial fascia - Pectoral fascia - Axillary fascia - Fascial compartments of arm - Lateral intermuscular septum - Medial intermuscular septum - Bicipital aponeurosis Human anatomy or anthropotomy is a special field within anatomy. ... In humans, the upper limb is an anatomical term for the limb that is attached to the pectoral girdle. ... In anatomy, an arm is one of the upper limbs of a two-legged animal. ... Females underarm The underarm (or armpit, axilla, or oxter) is the area on the human body directly under the joint where the arm connects to the shoulder. ... The first portion of the axillary artery is enclosed, together with the axillary vein and the brachial plexus, in a fibrous sheathâ€”the axillary sheathâ€”continuous above with the deep cervical fascia. ... The pectoral girdle is the set of bones which connect the upper limb to the axial skeleton on each side. ... The lateral intermuscular septum extends from the lower part of the crest of the greater tubercle, along the lateral supracondylar ridge, to the lateral epicondyle; it is blended with the tendon of the Deltoideus, gives attachment to the Triceps brachii behind, to the Brachialis, Brachioradialis, and Extensor carpi radialis longus... The medial intermuscular septum, thicker than the lateral intermuscular septum, extends from the lower part of the crest of the lesser tubercle of the humerus below the Teres major, along the medial supracondylar ridge to the medial epicondyle; it is blended with the tendon of the Coracobrachialis, and affords attachment... Opposite the bend of the elbow the tendon of the biceps brachii gives off, from its medial side, a broad aponeurosis, the lacertus fibrosus (aponeurosis of biceps muscle of arm, bicipital fascia) which passes obliquely downward and medialward across the brachial artery, and is continuous with the deep fascia covering...

Forearm: Cubital fossa - Interosseous membrane of the forearm - Posterior compartment of the forearm - Anterior compartment of the forearm - Antebrachial fascia - Carpal tunnel - Common extensor tendon - Common flexor tendon // The Human Forearm The forearm is the structure on the upper limb, between the elbow and the wrist. ... In anatomy, the cubital fossa is the area on the front side of the elbow joint of the arm. ... In the human wrist there is a sheath of tough connective tissue which envelopes and protects one nerve (median nerve) and tendons, which attach muscles to the wrist and hand bones. ...

Hand: Palmar aponeurosis - Finger - Extensor retinaculum of the hand - Flexor retinaculum of the hand - Anatomical snuff box Human right hand The hands (med. ... The palmar aponeurosis (palmar fascia) invests the muscles of the palm, and consists of central, lateral, and medial portions. ... Fingers of the human left hand The finger is any of the digits of the hand in humans and other species such as the great apes. ... The anatomical snuff box is a depression on the back of the hand, just beneath the thumb, that is formed by two tendons. ...

See also GA_googleFillSlot("encyclopedia_square");

Additional images

External links

See also