Nerve root stuff

Question 1

Dermatome supply of T1

Answer 1

Medial side of forearm to base of little finger

Question 2

Dermatome supply of T2

Answer 2

Medial side of upper arm to medial elbow, pec and midscapular region

Question 3

Dermatome of T3-T12

Answer 3

T3-T6 upper thoracic
T5-T7 costal margin
T8-T12- abdomen/lumbar region

Question 4

Does a lesion at first 2 thoracic levels give rise to root weakness?

Answer 4

NO

Question 5

L1 dermatome

Answer 5

Groin, greater trochanter

Question 6

L1 Paresthesia

Answer 6

Sometimes over groin after holding a position

Question 7

L2 dermatome

Answer 7

anterior thigh (front of thigh to knee)

Question 8

L2 weakness

Answer 8

Psoas

Hip adductors

Question 9

L3 dermatome

Answer 9

Upper buttock
anterior thigh and knee
Lower leg

Question 10

L3 Weakness

Answer 10

Psoas
Quads
thigh atrophy

Question 11

L3 reflexes affected

Answer 11

knee jerk slugglish

pain on full SLR

Question 12

L3 paresthesia

Answer 12

Medial knee

Anterior lower leg

Question 13

L4 dermatome

Answer 13

medial butt
lateral thigh
medial leg
dorsum of the foot
big toe

Question 14

L4 muscle weakness

Answer 14

Anterior tib

Extensor hallicus

Question 15

L4 reflex

Answer 15

SLR
Neck flexion pain
Absent knee jerk
side flexion limited

Question 16

L4 paresthesia

Answer 16

Medial aspect of calf and ankle

Question 17

L5 dermatome

Answer 17

butt, posterior thigh, lateral thigh, lateral aspect of foot, dorsum of foot, medial half of sole, 1-3 toes

Question 18

L5 muscle weakness

Answer 18

extensor hallicus
peroneals
glutes med
DF
HS
calf atrophy

Question 19

L5 reflexes

Answer 19

SLR
neck flexion pain
ankle decreased
crossed leg raising pain

Question 20

L5 paresthesia

Answer 20

Lateral aspect of toes

toes

Question 21

S1 dermatome

Answer 21

lateral and plantar aspect of foot

Question 22

S1 muscles

Answer 22

calf and hamstrings
glutes
peroneals
PF

Question 23

S1 reflex

Answer 23

SLR

Achilles absent/weak

Question 24

S1 paresthesia

Answer 24

lateral foot
lateral 2 toes
plantar aspect of foot

Question 25

S2 Muscle

Answer 25

Same as S1 but peroneals too

Question 26

S2 dermatome

Answer 26

butt, thigh, and posterior leg

Question 27

S2 reflex

Answer 27

same as s1

Question 28

S2 paresthesia

Answer 28

lateral leg, knee, heel

Question 29

S3 dermatome

Answer 29

Froin | Posterior medial thigh to knee

Question 30

S4 dermatome

Answer 30

Perineum genitals sacrum

Question 31

S4 muscles

Answer 31

bladder | rectum

Question 32

S4 paresthesia

Answer 32

Saddle area