Skip to Content
Medical Term:

long thoracic nerve


arises from the fifth, sixth, and seventh cervical nerves (roots of brachial plexus), descends the neck behind the brachial plexus, and is distributed to the serratus anterior muscle; it is somewhat unusual in that it courses on the superficial aspect of the muscle it supplies; its paralysis results in “winged scapula.”

Synonym(s): nervus thoracicus longusTA, Bell respiratory nerve, external respiratory nerve of Bell, posterior thoracic nerve

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.