Main Model


77 Subscapularis

Origin:
Subscapular fossa (most of anterior surface of scapula)
Insertion:
Lesser tubercle of humerus
Blood Supply:
Subscapular artery, lateral thoracic artery
Innervation:
Upper and lower subscapular nerves (C5, C6, C7)
Main Action:
Medially rotates arm; as part of rotator cuff, helps hold head of humerus in glenoid cavity