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The brachial plexus is a network of nerves (nerve plexus) formed by the anterior rami of the lower four cervical nerves and first thoracic nerve (C5, C6, C7, C8, and T1).This plexus extends from the spinal cord, through the cervicoaxillary canal in the neck, over the first rib, and into the armpit, it supplies afferent and efferent nerve fibers to the chest, shoulder, arm, forearm, and hand.
The ulnar nerve can suffer injury anywhere between its proximal origin of the brachial plexus all the way to its distal branches in the hand. It is the most commonly injured nerve around the elbow. [ 9 ] [ 10 ] Although it can be damaged under various circumstances, it is commonly injured by local trauma or physical impingement ("pinched nerve").
Known discrepancies with Brachial plexus article: Image does not show the following often-but-not-always contributions: C7 in ulnar nerve, C4 in dorsal scapular and subclavius nerves. Image shows C5 in median nerve. Date: 26 December 2009: Source: Brachial plexus.svg; Author: Brachial plexus.svg: Selket; derivative work: mcstrother (Marshall ...
This image is a derivative work of the following images: File:Brachial_plexus.jpg licensed with PD-US . 2008-06-19T21:37:26Z File Upload Bot (Magnus Manske) 587x500 (55381 Bytes) {{BotMoveToCommons|en.wikipedia}} {{Information |Description={{en|Anterior view of right brachial plexus.
Anatomical illustration of the brachial plexus with areas of roots, trunks, divisions and cords marked. Clicking on names of branches will link to their Wikipedia entry. The brachial plexus is formed by the ventral rami of C5-C8-T1 spinal nerves, and lower and upper halves of C4 and T2 spinal nerves. The plexus extends toward the armpit.
Anatomical illustration of the brachial plexus. with areas of roots, trunks, divisions and cords marked. Clicking on names of branches will link to their Wikipedia entry.
Abdominal aortic plexus; Abducens nerve; Accessory nerve; Accessory obturator nerve; Alderman's nerve; Anococcygeal nerve; Ansa cervicalis; Anterior interosseous nerve; Anterior superior alveolar nerve; Auerbach's plexus; Auriculotemporal nerve; Axillary nerve; Brachial plexus; Buccal branch of the facial nerve; Buccal nerve; Cardiac plexus ...
The median nerve innervates the flexors of the wrist and digits, the abductors and opponens of the thumb, the first and second lumbricals. The ulnar nerve innervates the remaining intrinsic muscles of the hand. [3] [4] All muscles of the hand are innervated by the brachial plexus (C5–T1) and can be classified by innervation: [1] [4] [5]