Lower Extremity Cutaneous Nerves

Question 1

Lateral femoral cutaneous n.

Answer 1

br. of lumbar plexus (L2-3)

sensory & postganglionic sympathetic innervation of the skin overlying the lateral aspect of the thigh

Question 2

Saphenous n.

Answer 2

br. of femoral n.

courses through the adductor canal

sensory & postganglionic sympathetic innervation of the skin overlying the medial aspect of the leg

Question 3

Perforating cutaneous n.

Answer 3

br. of sacral plexus (S2-3)

function- sensory, postganglionic sympathetic innervation of the medial part of buttock

Question 4

Posterior cutaneous nerve of thigh

Answer 4

br. of sacral plexus (S1-3)

function- sensory, postganglionic sympathetic innervation of buttock and uppermost medial and posterior surfaces of thigh

Question 5

Sural n.

Answer 5

br. of tibial n.

function- sensory & postganglionic sympathetic innervation of the skin overlying the lateral aspect of the leg & foot

Question 6

Lateral sural n.

Answer 6

br. of common fibular n.

function- sensory & postganglionic sympathetic innervation of the skin overlying the lateral aspect of the leg