Exam 3 Nerve Innervations

Question 1

Anterior rami (L1, L2, L3)

Answer 1

psoas major

Question 2

Anterior rami (S1, S2)

Answer 2

piriformis

Question 3

Femoral nerve (L2, L3)

Answer 3

pectineus, sartorius

Question 4

Femoral nerve (L2, L3, L4)

Answer 4

Iliacus, rectus femoris, vastus lateralis, vastus medialis, vastus intermedius

Question 5

Obturator nerve (L2, L3)

Answer 5

gracilis

Question 6

Obturator nerve (L3, L4)

Answer 6

obturator externus

Question 7

Obturator nerve (L2, L3, L4)

Answer 7

adductor longus, adductor brevis, adductor Magnus (adductor part)

Question 8

tibial nerve (L4)

Answer 8

adductor Magnus (hamstring part)

Question 9

tibial nerve (L4, L5)

Answer 9

tibialis posterior

Question 10

tibial nerve (L4, L5, S1)

Answer 10

popliteus

Question 11

tibial nerve (L5, S1, S2)

Answer 11

semitendinosus, semimembranosis, biceps femoris (long head)

Question 12

tibial nerve (S2, S3)

Answer 12

flexor hallucis longus, flexor digitorum longus

Question 13

medial plantar nerve (L5, S1)

Answer 13

adductor hallucis, flexor digitorum brevis, lumbricals (medial 1), flexor hallucis brevis

Question 14

lateral plantar nerve (S1, S2, S3)

Answer 14

abductor digiti minimi, quadrate plantae, lumbricals (lateral 3), plantar interossei, dorsal interossei

(superficial branch) flexor digiti minimi brevis

(deep branch) adductor hallucis

Question 15

common fibular nerve (L5, S1, S2)

Answer 15

biceps femoris (short head)

Question 16

superficial fibular nerve (L5, S1, S2)

Answer 16

fibularis longus, fibularis brevis

Question 17

deep fibular nerve (L4, L5)

Answer 17

tibialis anterior

Question 18

deep fibular nerve (L5, S1)

Answer 18

extensor hallucis longus, extensor digitorum longus, fibularis tertius, extensor hallucis brevis, extensor digitorum brevis

Question 19

superior gluteal nerve (L4, L5, S1)

Answer 19

gluteus medius, gluteus minimus, tensor fascial latae

Question 20

inferior gluteal nerve (L5, S1, S2)

Answer 20

gluteus maximus

Question 21

nerve to quadratus femoris (L5, S1)

Answer 21

inferior gamellus, quadratus femoris

Question 22

Nerve to obturator internus (L5, S1)

Answer 22

obturator internus, superior gamellus