Human Anatomy: Muscle Groups

Human Anatomy

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Muscle Function & Other Pertinent Medical Information
ORIGIN: Medial three quarters of infraspinous fossa of scapula and fibrous intermuscular septa
INSERTION: Middle facet of greater tuberosity of humerus and capsule of shoulder joint
ACTION: Laterally rotates arm and stabilizes shoulder joint
NERVE: Suprascapular nerve (C5, 6 ) (from upper trunk)

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