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Muscle: Subscapularis (Musculus subscapularis)

Attachments: Origin & Insertion
Origin: (proximal attachment)
a. Subscapular fossa of the scapula.
Insertion: (distal attachment)
a. Lesser tubercle of humerus.

Actions:
a. Medially rotates the arm at the shoulder (glenohumeral) joint.

Nerves & Nerve Roots:
a. Upper and lower subscapular nerves.
a. C5, C6, and C7.


















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Subscapularis Muscle