Dermatomes

Question 1

C1

Answer 1

None

Question 2

C2

Answer 2

Temple, forehead, occiput

Question 3

C3

Answer 3

Entire neck, posterior cheek, temporal area, prolongation forward under mandible

Question 4

C4

Answer 4

Shoulder area, clavicular area, upper scapular area

Question 5

C5

Answer 5

Deltoid area, anterior aspect of entire arm to base of thumb

Question 6

C6

Answer 6

Anterior arm, radial side of hand to thumb and index finger

Question 7

C7

Answer 7

Lateral arm and forearm to index, long and ring fingers

Question 8

C8

Answer 8

Medial arm and forearm to long, ring and little fingers

Question 9

T1

Answer 9

Medial side of forearm to base of little finger

Question 10

T2

Answer 10

Medial side of upper arm to medial elbow, pectoral and mid-scapular areas

Question 11

T3-T6

Answer 11

Upper thorax

Question 12

T5-T7

Answer 12

Costal margin

Question 13

T8-T12

Answer 13

Abdomen and lumbar region

Question 14

L1

Answer 14

Back, over trochanter and groin

Question 15

L2

Answer 15

Back, front of thigh to knee

Question 16

L3

Answer 16

Back, upper buttock, anterior thigh and knee, medial lower leg

Question 17

L4

Answer 17

Medial buttock, lateral thigh, medial leg, dorm of foot, big toe

Question 18

L5

Answer 18

Buttock, posterior and lateral thigh, lateral aspect of leg, dorm of foot, medial half of sole, first, second and third toes

Question 19

S1

Answer 19

Buttock, thigh, and leg posterior

Question 20

S2

Answer 20

Buttock, thigh and leg posterior

Question 21

S3

Answer 21

Groin, medial thigh to knee

Question 22

S4

Answer 22

Perineum, genitals, lower sacrum