Flexor hallucis muscle

The flexor hallucis muscle is a muscle located in the lower leg. It is one of the muscles of the posterior compartment of the leg and plays a crucial role in the movement of the big toe and the ankle joint.

Anatomy

The flexor hallucis muscle originates from the posterior aspect of the middle third of the fibula. It inserts into the base of the distal phalanx of the great toe. The muscle is innervated by the tibial nerve and receives its blood supply from the fibular artery.

Function

The primary function of the flexor hallucis muscle is to flex all the joints of the big toe. It also assists in the plantar flexion of the ankle joint, which is essential for activities such as walking, running, and jumping.

Clinical significance

Injuries or conditions affecting the flexor hallucis muscle can lead to difficulties in toe flexion and ankle movement. Conditions such as flexor hallucis longus tendinitis can cause pain and discomfort in the foot and ankle region.

See also

• Flexor hallucis longus muscle
• Posterior compartment of the leg
• Tibial nerve
• Fibular artery