释义 |
ulnar nerve
ulnar nerve n (Anatomy) a nerve situated along the inner side of the arm and passing close to the surface of the skin near the elbow. See funny bone ThesaurusNoun | 1. | ulnar nerve - a nerve running along the inner side of the arm and passing near the elbow; supplies intrinsic muscles of the hand and the skin of the medial side of the handcubital nerve, nervus ulnarisnerve, nervus - any bundle of nerve fibers running to various organs and tissues of the bodyarm - a human limb; technically the part of the superior limb between the shoulder and the elbow but commonly used to refer to the whole superior limbcrazy bone, funny bone - a point on the elbow where the ulnar nerve passes near the surface; a sharp tingling sensation results when the nerve is knocked against the bone; "the funny bone is not humerus" | EncyclopediaSeefunny boneulnar nerve
ul·nar nerve [TA] arises from the medial cord of the brachial plexus conveying fibers mainly from the C8 and T1 nerves; it passes down the arm, behind the medial epicondyle of the humerus, and down the ulnar side of the anterior compartment of the forearm to the hand; it gives off muscular branches in the forearm to the flexor carpi ulnaris muscle and the ulnar portion of flexor digitorum profundus and supplies the hypothenar, interosseous, medial lumbricals, adductor pollicis, and deep head of flexor hallucis brevis, and the intrinsic muscles of the hand and the skin of the small finger and medial side of the ring finger and adjacent portions of the palm of the hand. The ulnar nerve is most vulnerable to injury where it passes subcutaneously behind the medial epicondyle of the humerus. Mild injury here produces the so-called crazy bone sensation. An ulnar nerve lesion here causes loss of flexion of metacarpophalangeal joints and of extension at the interphalangeal joints ("claw hand"). Synonym(s): nervus ulnaris [TA], cubital nerveul·nar nerve (ŭl'năr nĕrv) [TA] Arises from medial cord of brachial plexus conveying fibers mainly from C8-T1 nerves; passes down arm, behind medial epicondyle of humerus, and down ulnar side of anterior compartment of forearm to hand; gives off muscular branches in forearm to flexor carpi ulnaris muscle and ulnar portion of flexor digitorum profundus and supplies hypothenar, interosseous, medial lumbricals, adductor pollicis, and deep head of flexor pollicis brevis, and intrinsic muscles of hand and skin of small finger and medial side of ring finger and adjacent portions of the palm of the hand. Synonym(s): nervus ulnaris [TA] , cubital nerve. ulnar nerve One of the main nerves of the arm that supplies some of the muscles of the forearm and all the small muscles of the hand. It also provides sensation to the skin of the third of the hand on the little finger side. It is near the surface at the back of the elbow where it is liable to be painfully struck. This is the basis for the notion of the ‘funny bone’.AcronymsSeeUNulnar nerve Related to ulnar nerve: radial nerve, median nerve, Cubital tunnel syndrome, Ulnar nerve entrapmentSynonyms for ulnar nervenoun a nerve running along the inner side of the arm and passing near the elbowSynonyms- cubital nerve
- nervus ulnaris
Related Words- nerve
- nervus
- arm
- crazy bone
- funny bone
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