ulnar nerve

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Related to Ulnar Nerves: Cubital tunnel syndrome

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 nerve

ul·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’.
References in periodicals archive ?
From this level, markers were placed along the course of the ulnar nerve at 2-cm intervals, including seven markers, such as 6 cm below medial epicondyle (BE6), 4 cm below medial epicondyle (BE4), 2 cm below medial epicondyle (BE2), medial epicondyle (E), 2 cm above medial epicondyle (AE2), 4 cm above medial epicondyle (AE4), 6 cm above medial epicondyle (AE6).
For orthodromic sensory conduction of ulnar nerve, recording electrode was placed 3cm proximal to distal palmer crease and a reference electrode at 3cm proximal to recording electrode.
Significant difference was found between ulnar nerve sensory conduction studies and RRIV (p=0.014).
To our knowledge, no studies have used histories, physical examinations, and NCS to assess the status of the median and ulnar nerves in Soldiers enrolled in a dental assistant course.
A 40-year-old man revealed high signal on T2W (T2 weighted) MRI in a thickened ulnar nerve with no evidence of mass lesions or osteodegenerative changes.
We present three patients who had multiple neurilemomas; two patients had tumors within a single major nerve and its branches, and the third patient had an unusual occurrence of one tumor in the ulnar nerve and a second tumor in a branch of the median nerve.
The neurophysiological study consisted of motor and sensory NCS of the ulnar nerve and median nerve.
The muscle was located over flexor carpi ulnaris muscle, ulnar side of flexor digitorum superficialis tendons and crossed over the proximal third of ulnar canal, in close contact with the ulnar nerve and vessels.
The ulnar nerve conduction values showed no statistically significant changes in any parameters such as conduction velocity, amplitude, and latency.
The Usefulness of Terminal Latency Index of Median Nerve and F-Wave Difference Between Median and Ulnar Nerves in Assessing the Severity of Carpal Tunnel Syndrome.
Therefore, 96 ulnar nerves in leprosy patients and 60 normal ulnar nerves were evaluated, both clinically and on high resolution US.