|Nerve Type||Mixed nerve|
|Origin||One of the two branches of the sciatic nerve in the lower third of the thigh. L4-S3.|
|Course||Through popliteal fossa, deep to gastrocnemius, and under the flexor retinaculum of the ankle.|
|Major Branches||Sural Nerve, Medial Plantar Nerve, Lateral Plantar Nerve, Medial Calcaneal Nerve|
|Sensory innervation||Articular branches to the joints of the knee, ankle, and foot. Cutaneous branches to the posterior calf and sole of the foot.|
|Motor innervation||Posterior Compartment of the Thigh, Posterior Compartment of the Leg, muscles of the sole of the foot|
It forms the medial portion of the sciatic nerve. It leaves the sciatic nerve in the lower thigh and runs to the central popliteal fossa between and deep to the Semitendinosus and Biceps Femoris muscles. It courses into the lower leg under the fibrous arch of soleus, along the Tibialis Posterior. It reaches medially to lie posterior to the medial malleolus of the ankle under the flexor retinaculum.
Branches in Thigh:
Sensory: knee and superficial tibiofibular joints, Sural Nerve to posterolateral calf and lateral foot skin.
Branches in Leg:
Branches in Foot:
A high lesion of the tibial nerve results in
- Loss of flexion of the toes and inversion of the foot.
- Loss of sensation of the sole of the foot, inferior aspect of the toes, and nail beds
- "Instant Anatomy - Lower Limb - Nerves - Tibial". www.instantanatomy.net. Retrieved 2022-04-17.