Lumbosacral Plexus Anatomy

Question 1

Nerve roots that make up lumbosacral plexus

Answer 1

L1,2,3,4 = lumbar plexus
L4,5,S1,2,3,4 = sacral plexus

Question 2

Posterior divisions of lumbosacral plexus

Answer 2

Femoral nerve and peroneal nerve

Question 3

Anterior division of lumbosacral plexus

Answer 3

Obturator and tibial nerves

Question 4

Terminal branches of lumbar plexus

Answer 4

Iliohypogastric, ilioinguinal, genitofemoral

Question 5

Terminal branches of sacral plexus

Answer 5

Superior gluteal nerve and inferior gluteal nerve