Lower extremity innervations

Question 1

quads, illiopsoas

Answer 1

L2, L3, L4 femoral nerve

Question 2

adductor, gracilis

Answer 2

L2, L3. L4 obturator

Question 3

TA and EDL

Answer 3

L4, L5 sciatic nerve, deep fibular nerve

Question 4

EHL, EDB

Answer 4

L4, L5, S1, sciatic nerve, deep fibular nerve

Question 5

semimembranosus, semitendinosus, long head of biceps femoris

Answer 5

L4, L5, S1 sciatic nerve (tibial division)

Question 6

short head of the biceps femoris

Answer 6

L5, S1, sciatic nerve (fibular division)

Question 7

gluteus medius, gluteus minimus, tensor Fascia lata (TFL)

Answer 7

L4, L5, S1, superior gluteal nerve

Question 8

fibularis longus, fibularis brevis

Answer 8

L5, S1, sciatic nerve, superficial fibular nerve

Question 9

TP, FDL

Answer 9

L5, S1, sciatic nerve, tibial nerve

Question 10

Glut. Max

Answer 10

L5, S1, S2, inferior gluteal nerve

Question 11

gastrocnemius, soleus

Answer 11

S1, S2, sciatic nerve, tibial nerve

Question 12

Flexor hallucis brevis (FHB) and adbuctor hallucis brevis (AHB)

Answer 12

S1, S2, tibial nerve, medial plantar nerve

Question 13

abductor digiti quinti pedis

Answer 13

S1, S2, sciatic nerve, tibial nerve, lateral plantar nerve

Question 14

Cutaneous innervation to lateral thigh

Answer 14

L2, L3, lateral femoral cutaneous nerve

Question 15

cutaneous sensation to medial shin and medial calf

Answer 15

L2, L3, L4 femoral nerve; saphaneous nerve

Question 16

cutaneous sensation to medial plantar surface of the foot

Answer 16

L4, L5, sciatic nerve, tibial nerve, medial plantar nerve

Question 17

cutaneous innervation over lateral plantar surface of foot

Answer 17

S1, S2, sciatic nerve, tibial nerve, lateral plantar nerve