Human Anatomy: Muscle Groups

Human Anatomy

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Muscle Function & Other Pertinent Medical Information
ORIGIN: Upper half of posterior shaft of tibia and upper half of fibula between medial nerve crest and interosseous border, and interosseous membrane
INSERTION: Tuberosity of navicular bone and all tarsal bones (except talus) and spring ligament
ACTION: Plantar flexes and inverts foot. Supports medial longitudinal arch of foot
NERVE: Tibial nerve (L4, 5)

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