LE Peripheral Nerves

Question 1

Obturator

Answer 1

L2,L3,L4
medial thigh, especially distal
adductor longus, adductor brevis, adductor magnus, gracilis, obturator externus

Question 2

saphenous

Answer 2

L2 L3 L4
medial leg and foot
no motor

Question 3

femoral

Answer 3

L2 L3 L4
thigh via cutaneous nerves, mostly medial anterior
iliacus, sartorius, quad femoris, pectineus

Question 4

Lat cutaneous of thigh

Answer 4

L2 L3
lateral thigh
no motor

Question 5

post cutaneous of thigh

Answer 5

S2 S3
post thigh
no motor

Question 6

sciatic

Answer 6

L4 L5 S1 S2 S3
hip joint
knee flexors and all muscles of lower leg and foot

Question 7

sup gluteal

Answer 7

L5 S1 S2
no sensory
TFL, glut med, glut min

Question 8

inf glut

Answer 8

L5 S1 S2
no sensory
glut max

Question 9

N to quad femoris and inf gemellus

Answer 9

L5 S1 S2
no sensory
quad femoris, inf gemellus

Question 10

pudendal

Answer 10

S2 S3 S4
genitals
perineal muscles, ext urethral sphincter, external anal sphincter

Question 11

tibial

Answer 11

L4 L5 S1 S2 S3
post heel and plantar surface of foot
semitend, semimemb, biceps femoris, ass mag, gastroc, soleus, plantaris, FHL, FDL, post tib

Question 12

common fibular N

Answer 12

L4 L5 S1 S2
lat post leg
biceps femoris

Question 13

Sural

Answer 13

S1 S2
post and lat leg and lat foot
no motor

Question 14

med plantar

Answer 14

S2 S3
medial 3 1/2 digits
FHB, abd halluces, FDB, lumbricales

Question 15

lat plantar

Answer 15

S2 S3
lat 1 1/2 digits
ass hallucis, abd dig minimi, quad plantae, lumbricales, flexor digiti minimi brevis, interossei

Question 16

deep fibular

Answer 16

L4 L5 S1
between 1 and 2 toes
ant tib, EDL, EHL, fib tertius, EDB, EHB

Question 17

superf fib

Answer 17

L5 S1 S2
distal ant leg and dorsum of foot
fib long, fib brevis