Neuro: Nerve Reflexes and Dermatomes

Question 1

Biceps Reflex

Answer 1

C5, C6 - “Pick up Sticks”

Question 2

Triceps Reflex

Answer 2

C7, C8 - “Lay them Straight”

Question 3

Patella Reflex

Answer 3

L3, L4 - “Kick the Door”

Question 4

Achilles Reflex

Answer 4

S1, S2 - “Buckle my Shoe

Question 5

Cremasteric Reflex

Answer 5

L1, L2 - “Testes, Testes, L1, L2, … Move?”

Question 6

Anal Wink Reflex

Answer 6

S3, S4 - “Winks Galore”

Question 7

Moro Reflex

Answer 7

• “Hang on for life” reflex
• Abduct / Extend Limbs when starteld, and then draw together

Question 8

Rooting Reflex

Answer 8

• Movement of the head toward one side if Cheek or Mouth is stroked (Nipple Seeking Infants)

Question 9

Sucking Reflex

Answer 9

• Sucking response when Roof of Mouth is touched

Question 10

Palmar Reflex

Answer 10

• Curling of fingers if Palm is stroked

Question 11

Plantar Reflex

Answer 11

• Dorsiflexion of Large Toe and Fanning of other Toes with Plantar Stimulation
• Babinski Sign - presence of this reflex in an Adult, which may signify UMN Lesion

Question 12

Galant Reflex

Answer 12

• Stroking along one side of the Spine while Newborn is in Ventral Suspension (Face Down) causes Lateral Flexion of Lower Body toward stimulated side

Question 13

Posterior Half of a Skull-cap Dermatome

Answer 13

C2

Question 14

High Turtleneck Shirt Dermatome

Answer 14

C3

Question 15

Low-collar Shirt Dermatome

Answer 15

C4

Question 16

At the Nipple

Answer 16

T4 - “T4 at the Teat Pore”

Question 17

Xiphoid Process Dermatome

Answer 17

T7

Question 18

Umbilicus Dermatome

Answer 18

T10 - “T10 at the Belly ButTEN”

Question 19

Inguinal Ligament Dermatome

Answer 19

L1 - “L1 is IL (Inguinal Ligament)”

Question 20

Kneecaps Dermatome

Answer 20

L4 - “Down on ALL 4’s”

Question 21

Erection and Sensation of Penile and Anal Zones

Answer 21

S2, S3, S4 - “S2, 3, 4 Keep the Penis off the Floor”