Dermatomes and Reflexes Flashcards Preview

Neurology - Anatomy and Physiology > Dermatomes and Reflexes > Flashcards

Flashcards in Dermatomes and Reflexes Deck (26):
1

C2

posterior half of skull - skull cap.

2

C3

high turtleneck shirt

3

C4

Low collar shirt

4

C5

Below the collarbones, down the lateral arms.

5

C6-7-8

Dorsal arms

6

T1

Little bit of arm!

7

T4

at the nipple

8

T7

xiphoid process

9

T10

umbilicus (appendicitis)

10

L1

inguinal ligament

11

L4

kneecaps

12

S2,3,4

erection/sensation of penis/anal zones

13

Achilles reflex

S1,2 buckle my shoe.

14

Patellar reflex

L3,4 kick the door.

15

Biceps reflex

C5,6 pick up sticks.

16

Triceps reflex

C7,8 lay them straight.

17

Cremaster reflex

L1, L2, testicles move.

18

Anal wink reflex

S3, S4, winks galore.

19

When do primitive reflexes disappear by?

Usually by 1st yr of life.

20

What can cause primitive reflexes to reemerge?

Frontal lobe lesions.

21

Moro reflex

Hang on for life reflex - abduct/extend arms when startled, then draw together

22

Rooting reflex

Movement of head toward one side if cheek or mouth is stroked - nipple seeking

23

Sucking reflex

Sucking response if roof of mouth is touched

24

Palmar reflex

Curling of fingers if palm is stroked.

25

Plantar reflex

Dorsiflexion of large toe and fanning of other toes w/ plantar stimulation (upgoing babinski - UMN lesion in adult)

26

Galant reflex

Stroke along one side of spine while newborn is face down; lateral flexion of body towards stimulated side.