Medial calcaneal branches of the tibial nerve

The medial calcaneal branches of the tibial nerve are sensory nerve branches that arise from the tibial nerve. These branches are responsible for providing sensory innervation to the skin of the heel and the medial aspect of the foot.

Anatomy

The medial calcaneal branches originate from the tibial nerve, which is a major nerve of the lower limb. The tibial nerve itself is a branch of the sciatic nerve, and it travels down the posterior compartment of the leg. As the tibial nerve approaches the ankle, it gives off the medial calcaneal branches.

These branches pierce the flexor retinaculum and the abductor hallucis muscle to reach the skin of the heel. They are primarily sensory in function, providing sensation to the heel area.

Function

The primary function of the medial calcaneal branches is to supply sensory innervation to the skin over the heel. This includes the medial and plantar aspects of the heel, which are important for proprioception and protective sensation.

Clinical significance

Injury or compression of the medial calcaneal branches can lead to sensory disturbances in the heel area. This may occur in conditions such as tarsal tunnel syndrome, where the tibial nerve or its branches are compressed as they pass through the tarsal tunnel.

Also see

• Tibial nerve
• Sciatic nerve
• Tarsal tunnel syndrome
• Peripheral nerve injury