Human Anatomy: Muscle Groups

Human Anatomy

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Muscle Function & Other Pertinent Medical Information
ORIGIN: Humeral head: common flexor origin of medial epicondyle humerus, medial ligament of elbow. Ulnar head: medial border of coronoid process and fibrous arch. Radial head: whole length of anterior oblique line
INSERTION: Tendons split to insert onto sides of middle phalanges of medial four fingers
ACTION: Flexes proximal interphalangeal joints and secondarily metacarpophalangeal joints and wrist
NERVE: Median nerve (C7, 8) (from medial and lateral cords)

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