Dermatomes, Mytotomes, Reflexes

Question 1

C2 dermatome

Answer 1

posterior half of skull

Question 2

C3 dermatome and referred pain

Answer 2

Nape of the neck
Referred pain: Diaphragm and gallbladder from phrenic nerve

C3, C4, C5 keeps the diaphragm alive

Question 3

C4 dermatome

Answer 3

Low collar shirt: buster bluth shoulder massage

Question 4

C5 myotome, C5-6 reflex, C6 myotome ad dermatome

Answer 4

C5 myotome: shoulder abduction

C5-C6 reflex: Biceps reflex

C6 myotome: elbow flexion
C6 dermatome: Thumb (T1 myotome=thumb opposition)

Question 5

C7 and 8 myotome, C7-8 reflex

Answer 5

C7 myotome: elbow extension
C8: Wrist flexion

C7-8 reflex: Triceps reflex

Question 6

T1 myotome

Answer 6

Thumb opposition

Question 7

L1 dermatome, L2 myotome, L1-L2 reflex

Answer 7

L1 dermatome: Inguinal ligament
L2: Hip flexion
L1-L2 reflex: Cremasteric Reflex

Question 8

T4 dermatome

Answer 8

Nipple

Question 9

T7 dermatome

Answer 9

Xiphoid process

Question 10

T10 dermatome

Answer 10

Umbilicus (0 is a belly button)

Question 11

L4 dermatome, L3 and L4 myotome, L3-L4 reflex

Answer 11

L4 dermatome: Kneecap, medial maleolus

L3 myotome: Hip adduction
L4 myotome: knee extension

L3-L4 reflex: patellar reflex

Question 12

S1 myotome, S1-S2 reflex,

Answer 12

ankle plantar flexion, achilles reflex

Question 13

S2, S3, S4 dermatome, S3-S4 reflex, S2-S4

Answer 13

S2, S3, S4 dermatome: sensation of penis and anal zones

S3-S4 reflex: anal wink

S2-S4: Erection