It is the deepest muscle of the deep posterior compartment of the lower leg.
Origin – posterior
tibia, fibula, and interosseous membrane
Insertion - navicular and
adjacent tarsals and metatarsals on the plantar surface.
Nerve supply – tibial nerve(l5,s1)
Blood supply- posterior tibial artery
Action- inversion
of the foot, assist plantarflexion of the ankle
Palpation- tendon
palpated on medial malleolus during active inversion of the foot.belly is deep to
triceps sural and cannot be palpated.
“it is the key stabilizing muscle of the lower leg"
Tags:
Tibialis posterior
