Pectoralis Major – Sternal Head
Pectoralis Major – Sternal Head
☆Pectoralis Major
MusclePro
Anatomy
- Origin
- Sternum, upper six costal cartilages, aponeurosis of external oblique
- Insertion
Lateral lip of intertubercular (bicipital) groove of humerus, crest below greater tubercle of the humerus
- Nerve
Medial and lateral pectoral nerves (C5–C8, T1)
- Actions
- Together with the Pectoralis Major - Clavicular head adduct, medially rotate arm;
- Sternocostal part alone: extends the flexed arm
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The full entry includes: 2 images · 1 muscle test · 8 balancing items · 24 connections.
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