◔
Lateral Pectoral Nerve
From WikiMSK
This article is a stub.
| |
| Lateral Pectoral Nerve | |
|---|---|
| Nerve Type | |
| Origin | From the lateral cord of the brachial plexus with fibers mainly C5–C7 |
| Course | Runs anterior to the axillary artery, pierces the clavipectoral fascia, and enters the deep surface of pectoralis major, often contributing to the ansa pectoralis. |
| Major Branches | Muscular branches to pectoralis major with a communicating branch to the medial pectoral nerve. |
| Sensory innervation | No cutaneous field, providing proprioceptive afferents from pectoralis major. |
| Motor innervation | Pectoralis major, especially the clavicular head, enabling shoulder adduction, flexion, and internal rotation. |
