Human Anatomy: Muscle Groups

Human Anatomy

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Muscle Function & Other Pertinent Medical Information
ORIGIN: Pisiform bone, pisohamate ligament and flexor retinaculum
INSERTION: Ulnar side of base of proximal phalanx of little finger and extensor expansion
ACTION: Abducts little finger at metacarpophalangeal joint
NERVE: Deep branch of ulnar nerve (C8, T1)

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