Neuroanatomy Draw It To Know It

4. Peripheral Nervous System—Lower Extremity 65

Common

peroneal

nerve

Tibial nerve

Sural nerve (cutaneous)

Sciatic nerve

(L4 - S3)

Superficial

peroneal

nerve

Deep peroneal nerve

Peroneus longus & peroneus brevis (L5, S1)

Thigh Leg

Fibular

neck

Lateral calcaneal branch &

lateral dorsal cutaneous

nerves

Tibialis anterior (L4, L5)

Ext. digit. longus, ext. hallucis longus,

& peroneus tertius (L5, S1)

Deep m. - tibialis post., flexor digit. longus,

& flexor hallucis longus (L5, S1)

Medial sural cutaneous nerve

Lateral sural cutaneous nerve

Plantar instrinsic

foot muscles (S1- S3)

Foot

Medial and lateral

plantar nerves

Tarsal

Popliteal fossa tunnel

Ext. digit. brevis &

ext. hallucis brevis

(L5, S1)

Sural communicating branch

Medial calcaneal branch

Superficial m. - gastrocnemius & soleus (S1, S2) (cutaneous)

(additional m. - popliteus and plantaris)

DRAWING 4-4 Th e Leg & Foot — Complete