Lower Extremity Innervation

Question 1

Lumbar plexus

Answer 1

Psoas major, psoas minor, QL

Question 2

Sciatic nerve (tibial division)

Answer 2

Semitendinous, semimembranosus, biceps femoris (long head)

Question 3

Sacral plexus

Answer 3

Piriformis, superior and inferior gemelli, obturator internus, quadratus femoris

Question 4

Sciatic nerve (common peroneal division)

Answer 4

Biceps femoris (short head)

Question 5

Inferior gluteal nerve

Answer 5

Gluteus maximus

Question 6

Deep peroneal nerve

Answer 6

Tibialis anterior, extensor digitorum longus, extensor hallucis longus, peroneus tertius, extensor digitorum brevis

Question 7

Superior Gluteal nerve

Answer 7

Gluteus medius, gluteus minimus, TFL

Question 8

Superficial peroneal nerve

Answer 8

Peroneus longus, perneous brevis

Question 9

Femoral nerve

Answer 9

Vastus lateralis, medialius, and intermedius, rectus femoris, iliacus, sartorius, pectineus

Question 10

Medial plantar nerve

Answer 10

Abductor hallucis, Lumbical I, Flexor digitorum brevis, flexor hallucis brevis

Question 11

Obturator nerve

Answer 11

Adductor longus, adductor brevis, adductor magnus, obturator externus, gracilis

Question 12

Lateral plantar nerve

Answer 12

Abductor digiti minimi, flexor digiti minimi, opponens digiti minimi, dorsal inerossei, quadratus plantae, adductor hallucis, lumbrical II, III, IV, plantar interossei

Question 13

Tibial nerve

Answer 13

Soleus, popliteus, plantaris, tibialis posterior, gastrocnemius, flexor hallucis longus, flexor digitorum longus