Dermatomes/Myotomes/Reflexes/CranialNN

Question 1

C1-C2 Myotome

Answer 1

Neck Flexion

Question 2

C3 Myotome

Answer 2

Neck- Lateral Flexion

Question 3

C4 Myotome

Answer 3

Shoulder Elevation (shrugging)

Question 4

C5 Myotome

Answer 4

Shoulder Abduction

Question 5

C6 Myotome

Answer 5

Elbow Flexion, Wrist Extension

Question 6

C7 Myotome

Answer 6

Elbow Extension, Wrist Flexion

Question 7

C8 Myotome

Answer 7

Ulnar Deviation, Thumb Extension

Question 8

T1 Myotome

Answer 8

Fingers- Abduction and Adduction

Question 9

L2 Myotome

Answer 9

Hip Flexion

Question 10

L3 Myotome

Answer 10

Knee Extension

Question 11

L4 Myotome

Answer 11

Ankle Dorsiflexion

Question 12

L5 Myotome

Answer 12

Big Toe Extension

Question 13

S1 Myotome

Answer 13

Hip Extension, Ankle Plantarflexion & Eversion

Question 14

S2 Myotome

Answer 14

Knee Flexion

Question 15

CN V Reflex

Answer 15

Jaw-Mandible - Mouth closes

If it’s Hyporeflexive it could indicate Trigeminal Neuralgia

Question 16

C5 Reflex

Answer 16

Biceps Tendon - Bicep’s Contract

Question 17

C6 Reflex

Answer 17

Brachioradialis Tendon - Elbow Flexion or Forearm Pronation

Question 18

C7 Reflex

Answer 18

Distal Triceps Tendon above Olecranon - Elbow Extension

Question 19

L4 Reflex

Answer 19

Patellar Ligament - Leg Extension

Question 20

L5 Reflex

Answer 20

Medial Hamstring - Semimembranosus or Semitendinosus Tendon - Knee Flexion

Question 21

S1 Reflex

Answer 21

Achilles Tendon - Plantar Flexion

Question 22

S2 Reflex

Answer 22

Lateral Hamstrings, Biceps Femoris Tendon - Knee Flexion

Question 23

What does testing reflexes look for

Answer 23

Looking for normal or pathological, Hyper or Hypo reflexes

• Hyper - UMNL
• Hypo - LMNL

Question 24

What does Myotome testing look for

Answer 24

Tests the strength of the Muscle

If the result is positive as weakness, it would indicate a nerve root compression

Question 25

What does testing Dermatomes look for

Answer 25

Tests for sensory loss in the NN pattern of the skin Positive sign would be less sensation on one side, which means there’s a lesion in the same cutaneous NN root

Question 26

C2 Dermatome

Answer 26

Scalp, Temples, Face

Question 27

C3 Dermatome

Answer 27

Throat and Larynx

Question 28

C4 Dermatome

Answer 28

Above the Clavicles

Question 29

C5 Dermatome

Answer 29

The Clavicles down to the top of the shoulder blades, outside front of the arms

Question 30

C6 Dermatome

Answer 30

Outside portion of the Arms and Thumb

Question 31

C7 Dermatome

Answer 31

Central portion of the back of arms, middle portion of hands, index and middle fingers

Question 32

C8 Dermatomes

Answer 32

Inner portion of the back of arms, inner portion of the hand and the ring and pinky fingers

Question 33

T1 Dermatome

Answer 33

The chest across to the armpits and down the center portion of the front of the arms

Question 34

T2-T3 Dermatome

Answer 34

The chest down to the line of the nipples

Question 35

T4-T8 Dermatome

Answer 35

The chest, Diaphragm and Abdomen down to above the navel

Question 36

T9-T12 Dermatome

Answer 36

The stomach below the navel

Question 37

L1 Dermatome

Answer 37

The Hip and Groin area

Question 38

L2 Dermatome

Answer 38

Inside of the thigh

Question 39

L3 Dermatome

Answer 39

Knee

Question 40

L4 Dermatome

Answer 40

The inside part of the ankle (medial malleolus)

Question 41

L5 Dermatome

Answer 41

Bottom of the foot and toes 1-3

Question 42

S1 Dermatome

Answer 42

Toes 4-5, and the outside part of the Ankle (lateral malleolus)

Question 43

S2 Dermatome

Answer 43

The outer side of the heel bone (lateral side)

Question 44

CN V - Trigeminal

Answer 44

Client closes eyes; therapist strokes forehead, cheeks, ears and jaw with fingertips

Question 45

CN VII - Facial

Answer 45

Close eyes tightly, smile and show teeth, pucker lips, whistle and puff out cheeks

Question 46

CN III, IV, VI

Answer 46

Have client follow your finger with their eyes

Question 47

CN III

Answer 47

Papillary Light Reflex

Question 48

CN I

Answer 48

Olfactory

Question 49

CN XI - Accessory

Answer 49

Client resists shoulder elevation