Human Anatomy: Muscle Groups |
Muscle Function & Other Pertinent Medical Information | |
- TIBIALIS POSTERIOR - | |
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) |