Definition of brachial plexus
: a network of nerves lying mostly in the armpit and supplying nerves to the chest, shoulder, and arm
First Known Use of brachial plexus
Medical Definition of brachial plexus
: a complex network of nerves that is formed chiefly by the lower four cervical nerves and the first thoracic nerve, lies partly within the axilla, and supplies nerves to the chest, shoulder, and arm
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