500
Tibialis posterior:
O:____
I:____
A:_____
What is:
Tibialis posterior:
O: posterior proximal tibia, interosseous membrane, medial surface of fibula
I: navicular tuberosity, all 3 cuneforms, bases of 2nd-4th metatarsals, cuboid, sustentaculum tali of calcaneus
A: stabilizaes ankle, inversion and adduction fo foot, prevents hyperpronation while in gait, weak plantarflexion of ankle