Dermatomes

Question 1

C1

Answer 1

top of skull

Question 2

C2

Answer 2

temple, forehead, occiput

Question 3

C3

Answer 3

neck, posterior cheek, temporal area, under mandible

Question 4

C3 paresthesia

Answer 4

cheek, side of neck

Question 5

C4

Answer 5

shoulder, clavicular area, upper scapula area

Question 6

C4 paresthesia

Answer 6

horizontal band along clavicle and upper scapula

Question 7

C5

Answer 7

deltoid, anterior whole arm to bas of thumb

Question 8

C6

Answer 8

anterior arm
radial side of hand to thumb and index finger

Question 9

C6 paresthesia

Answer 9

thumb and index finger

Question 10

C7

Answer 10

medial arm and forearm to middle finger

Question 11

C7 paresthesia

Answer 11

index and middle finger

Question 12

C8

Answer 12

ring and pinky, ulnar side of forearm and medial arm

Question 13

C8 paresthesia

Answer 13

little finger, ulnar side of ring finger

Question 14

T1

Answer 14

medial side of forearm

Question 15

T2

Answer 15

medial upper arm (pit), sub-clavicle area

Question 16

T3-T6

Answer 16

upper thoracic
T4 - nipple line

Question 17

T5-T7

Answer 17

costal margin

Question 18

T7-T12

Answer 18

lower abdomen
T10- belly button
T12- ASIS

Question 19

T3-T12 paresthesia

Answer 19

in distribution

Question 20

L1

Answer 20

upper groin
lower back

Question 21

L1 paresthesia

Answer 21

groin

Question 22

L2

Answer 22

lower groin
anterior thigh and knees
upper buttocks

Question 23

L2 paresthesia

Answer 23

anterior thigh

Question 24

L3

Answer 24

sacral area
knees
medial thigh from groin to knee

Question 25

L3 paresthesia

Answer 25

medial knee, anterior lower leg

Question 26

L4

Answer 26

medial lower leg anterior and posterior

Question 27

L4 paresthesia

Answer 27

medial aspect of calf and ankle

Question 28

L5

Answer 28

anterior tibial region, toes

Question 29

L5 paresthesia

Answer 29

toes

Question 30

S1

Answer 30

lateral foot plantar aspect of foot gastroc/soleus area

Question 31

S1 paresthesia

Answer 31

lateral foot and toes and plantar aspect of foot

Question 32

S2

Answer 32

posterior thigh

Question 33

S2 parethesia

Answer 33

lateral leg, knee, and heel

Question 34

S3

Answer 34

buttock

Question 35

S4

Answer 35

rectum/anal area, lower sacrum

Question 36

S4 paresthesia

Answer 36

saddle area