Lumbar plexus

Question 1

Main branches

Answer 1

Iliohypogastric (L1)

ilioinguinal (L1)

genitofemoral (L1, L2)

lateral femoral cutaneous nerve (L2, L3)

Obturator nerve (L2, L3, L4)

Accessory obturator nerve (L3, L4)

Femoral nerve (L2, L3, L4)

Question 2

Iliohypogastric (L1) and ilioinguinal (L1)

Answer 2

transversus abdominis, internal oblique muscles

Question 3

Genitofemoral (L2)

Answer 3

cremaster muscle

Question 4

Lateral femoral cutaneous nerve (L2, L3)

Answer 4

skin of the lateral part of the thigh

Question 5

Obturator nerve (L2, L3, L4)

Answer 5

obturator externus, adductor’s, gamellus inf and sup, gracilis (long adductor), pectineus

Question 6

Accessory obturator nerve (L2, L3)

Answer 6

pectineus
hip joint

Question 7

Femoral nerve (L2, L3, L4)

Answer 7

iliopsoas, sartorius, quadriceps