brachial plexus

brachial plexus Word Origin noun Anatomy.

1. a network of nerves in the armpits and neck, innervating the shoulders, arms, and hands.

Origin of brachial plexus First recorded in 1855–60 brachial plexus in Medicine brachial plexus n.

1. A network of nerves located in the neck and axilla, composed of the anterior branches of the lower four cervical and first two thoracic spinal nerves and supplying the chest, shoulder, and arm.