Segmental Nerves of Trunk, Back, Lower Extremity

Question 1

Intercostals

Answer 1

T1-T6

Question 2

Rectus abdominus

Answer 2

T7-T12 (ventral rami)

Question 3

External obliques

Answer 3

T7-T12 (ventral rami)

Question 4

Internal obliques

Answer 4

T7-T12 (ventral rami)

Question 5

Transverse abdominus

Answer 5

T7-T12 (ventral rami)

Question 6

Quadratus lumborum

Answer 6

T12, L1-L4

Question 7

Iliacus

Answer 7

L1-L4 (femoral)

Question 8

Psoas major

Answer 8

L2-L4

Question 9

Adductor longus, brevis, and magnus

Answer 9

L2-L4 (obturator)

Question 10

Gracilis

Answer 10

L2, L3 (obturator)

Question 11

Pectineus

Answer 11

L2-L4 (femoral and obturator)

Question 12

Quadriceps (rectus femoris, vastus lateralis, vastus medialis, vastus intermedius)

Answer 12

L2-L4 (femoral)

Question 13

Sartorius

Answer 13

L2, L3 (femoral)

Question 14

Anterior tibialis

Answer 14

L4 (deep fibular)

Question 15

Tibialis posterior

Answer 15

L4, L5 (tibial)

Question 16

Tensor fasciae latae

Answer 16

L4, L5 (superior gluteal)

Question 17

Obturator externus

Answer 17

L4-L5

Question 18

Gemellus inferior

Answer 18

L4-L5, S1

Question 19

Quadratus femoris

Answer 19

L4-L5, S1

Question 20

Popliteus

Answer 20

L4-L5, S1 (tibial)

Question 21

Obturator internus

Answer 21

L5, S1-S2

Question 22

Gemellus superior

Answer 22

L5, S1-S2

Question 23

Extensor digitorum longus

Answer 23

L5

Question 24

Extensor hallucis longus and brevis

Answer 24

L5, S1

Question 25

Extensor digitorum brevis

Answer 25

L5, S1 (deep fibular)

Question 26

Gluteus maximus

Answer 26

L5, S1-S2 (inferior gluteal)

Question 27

Gluteus medius

Answer 27

L5, S1 (superior gluteal)

Question 28

Gluteus minimus

Answer 28

L5, S1 (superior gluteal)

Question 29

Gastrocnemius

Answer 29

S1, S2 (tibial)

Question 30

Soleus

Answer 30

S1, S2 (tibial)

Question 31

Peroneals

Answer 31

S1

Question 32

Piriformis

Answer 32

S1-S2 (ventral rami)

Question 33

Hamstrings (biceps femoris, semitendinosus, semimembranosus)

Answer 33

S1-S2

Question 34

Flexor hallucis longus

Answer 34

S2, S3 (tibial)

Question 35

Flexor digitorum longus

Answer 35

S2, S3 (tibial)

Question 36

Dorsal interossei

Answer 36

S2, S3 (lateral plantar)

Question 37

Abductor hallucis longus

Answer 37

S2, S3 (medial plantar)

Question 38

Flexor digitorum brevis

Answer 38

S2, S3 (medial plantar)

Question 39

Abductor digiti minimi

Answer 39

S2, S3 (lateral plantar)

Question 40

Lumbricals

Answer 40

S2, S3

Question 41

Adductor hallucis

Answer 41

S2, S3

Question 42

Dorsal and plantar interossei

Answer 42

S2, S3