Lumbar Plexus

Question 1

Iliohypogastric n.? Level?

Answer 1

L1; skin over upper lateral thigh, skin over inguinal region

Question 2

Ilioinguinal n.? Level?

Answer 2

L1; skin over upper anterior thigh

Question 3

Genitofemoral n.? Level?

Answer 3

L1-L2; skin over upper thigh

Question 4

Lateral femoral cutaneous n.? Level?

Answer 4

L2-L3; skin over lateral thigh

Question 5

Femoral n.? Branches? Level?

Answer 5

L2-L4; pectineus, iliopsoas, Quadriceps femoris, Sartorius
Branches:
Anterior femoral cutaneous n. –> skin over anterior and middle thigh
Saphenous nerve –> skin of medial thigh and leg

Question 6

Obturator n.? Level?

Answer 6

L2-L4; Medial compartment: (pectineus, gracilis, obturator externus, adductor muscles), skin of medial thigh (small palm sized area)