The Hip (nerves)

Question 1

What are the major nerves leaving the lumbosacral plexus and entering the lower limb

Answer 1

Femoral, obturator, sciatic and superior/inferior gluteal nerves

Question 2

Which spinal nerve fibres does the femoral nerve contain?

Answer 2

L2-L4

Question 3

Where does the femoral nerve innervate?

Answer 3

All muscles of anterior thigh, skin over anterior thigh, anteromedial side of knee and medial side of leg and foot

Question 4

What are the spinal segments in the obturator nerve?

Answer 4

L2-L4

Question 5

Where does the obturator nerve innervate?

Answer 5

All muscles in medial thigh except pectineus. Also innervates the obturator externus and the skin over medial thigh

Question 6

Which spinal segments are in the sciatic nerve?

Answer 6

L4 to S3

Question 7

Where does the sciatic nerve innervate?

Answer 7

All muscles in posterior thigh, all muscles in the leg and foot, skin over lateral side of leg and foot, and sole and dorsal surface of foot

Question 8

Which muscles do the superior and inferior gluteal nerves innervate?

Answer 8

Superior: gluteus minimus and medius
Inferior: gluteus maximus

Question 9

What are the two major branches of the sciatic nerve?

Answer 9

Common peroneal/fibular nerve and tibial nerve