Human Anatomy: Muscle Groups

Human Anatomy

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Muscle Function & Other Pertinent Medical Information
ORIGIN: Medial three quarters of supraspinous fossa of scapula, upper surface of spine (bipennate)
INSERTION: Superior facet on greater tuberosity of humerus and capsule of shoulder joint
ACTION: Abducts arm and stabilizes shoulder joint
NERVE: Suprascapular nerve (C5, 6)(from upper trunk)

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