| Muscle | Origin | Insertion | Innervation | Action |
|---|---|---|---|---|
| Pectoralis major | Clavicle (medial half) Sternum Costal cartilages 1-6 Rectus sheath (anterior layer) |
Humerus (crest of greater tubercle) | Lateral pectoral n. Medial pectoral n. C5 - T1 |
Entire muscle: Adduction, IR Clavicular & Sternocostal parts: Flexion, Aids in respiration when shoulder is fixed |
Lateral Pectoral Nerve
Motor Innervation
Citation
For attribution, please cite this work as:
Yomogida N, Kerstein C. Lateral Pectoral Nerve.
https://yomokerst.com/The
Archive/Anatomy/Nerves/Upper extremity
nerves/lateral_pectoral_nerve.html