Reflexes Lab

Question 1

where do primitive reflexes originate from

Answer 1

CNS and mediated in brainstem

Question 2

when do primitive reflexes begin

Answer 2

25-26 gestational weeks

Question 3

4 roles of infant reflexes

Answer 3

• stimulating CNS and mus (developing movement patterns)
• survival
• protective
• dx tool for assessing neurological maturity**

Question 4

2 roles of reflex testing in PT

Answer 4

• rule out CNS pathology
• responses more sensitive to detecting neurological dysfxn

Question 5

3 survival reflexes

Answer 5

rooting, sucking, swallowing

Question 6

time range for rooting

Answer 6

0-3 months

Question 7

How to perform rooting reflex

Answer 7

-supine, touch cheek or lips

Question 8

Expected result for rooting reflex

Answer 8

infant turns head toward stimulus and opens mouth

Question 9

When is sucking evident

Answer 9

4 months

Question 10

How to elicit sucking reflex

Answer 10

touch lips

Question 11

What reflex follows immediately after sucking reflex

Answer 11

rooting

Question 12

time range for moro reflex

when is it present

Answer 12

0-3 months

28 weeks

Question 13

how to elicit moro reflex

Answer 13

• hold back of baby’s neck, baby’s arms across chest
• hold trunk at 60-ish degrees?, then “drop” trunk while supporting head

Question 14

normal response for moro reflex

Answer 14

arms ext and abd with splaying fingers, followed by flex and add

Question 15

abnormal moro response

Answer 15

• arms flex unilaterally

Question 16

time range for galant reflex

Answer 16

0-3 months

Question 17

how to elicit galant reflex

Answer 17

use firm object to stroke lower lateral spines

Question 18

normal response for galant reflex

Answer 18

baby laterally flexes towards stimulus

Question 19

time range for primary stepping reflex

Answer 19

0-2 months

Question 20

how to elicit primary stepping reflex

Answer 20

• hold baby from under armpits with both hands
• allow the baby’s feet to touch the mat to step

Question 21

normal response for primary stepping reflex

Answer 21

LE flexion and ext high and exaggerated?

Question 22

time range for primitive grasp reflex

Answer 22

0-4 months

Question 23

how to elicit primitive grasp reflex

Answer 23

• always go from ulnar side and press hard**
• palmar for hand
• plantar for foot

Question 24

time range for asymmetrical tonic neck reflex (ATNR)

Answer 24

0-4 months

Question 25

how to elicit ATNR

Answer 25

- baby supine - turn baby's head manually or have baby turn head - UE and LE facing towards ext, opp flex

Question 26

time range for symmetrical tonic neck reflex (STNR)

Answer 26

4-8 months

Question 27

how to elicit STNR

Answer 27

- baby prone - neck ext, UE ext and LE flex OR - baby prone - neck flex, UE flex, LE ext

Question 28

when is STNR seen most

Answer 28

pathology; it's not seen much in babies

Question 29

time range for tonic labyrinthine response

Answer 29

0-4 months

Question 30

what two systems involved with tonic labyrinthine response

Answer 30

vestibular and proprioceptive

Question 31

describe what the tonic labyrinthine response looks like (supine and prone)

Answer 31

- head ext, UE and LE ext -head flex, UE and LE flex

Question 32

tonic labyrinthine prone pathology

Answer 32

inability to lift head d/t flexion bias

Question 33

tonic labyrinthine supine pathology

Answer 33

ext of extremities, trunk and hips

Question 34

time range for placing response

Answer 34

0-6 months

Question 35

how to elicit placing response

Answer 35

- hold baby under both armpits - allow baby's ant tib graze the edge of the mat

Question 36

typical placing response

Answer 36

the baby steps onto mat or step

Question 37

time range for positive support and vertical suspension standing

Answer 37

0-2

Question 38

how to elicit positive support and vertical suspension standing

Answer 38

- hold baby under armpits with both hands - have baby's balls of feet contact mat

Question 39

typical response for positive support and vertical suspension standing

Answer 39

-ext legs to hold self up, ankles in a lil PF

Question 40

time range for landau

Answer 40

3-5 months

Question 41

how to elicit landau

Answer 41

- baby prone - head should ext at some point?

Question 42

typical landau

Answer 42

superman - head ext, UE ABD and ext, back ext, LE ext

Question 43

**what system is connected to extensors

Answer 43

vestibular

Question 44

purpose of righting reactions

Answer 44

establish normal head-body relationships

Question 45

what two systems are involved/stimulated with righting response

Answer 45

vestibular and vision

Question 46

what 3 mechanisms stimulate righting response

Answer 46

- angular rotation - acceleration - deceleration

Question 47

what is the neck on body righting reaction

Answer 47

head rotates to one side and the whole body follows

Question 48

purpose of neck on body righting response

Answer 48

helps orient body in response to cervical afferents that tell changes in head and neck pos

Question 49

what is body on body righting response

Answer 49

the body moves segmentally towards the direction the head rotates?

Question 50

purpose of body on body righting reaction

Answer 50

orients body with respect to ground regardless of head pos

Question 51

purpose of equilibrium reactions

Answer 51

restore balance when COG displaced

Question 52

purpose of protective ext response

Answer 52

maintain balance and protect cranium when equilibrium response is unable to restore balance

Question 53

time range for parachute response

Answer 53

5-12 months

Question 54

how to elicit parachute response

Answer 54

- hold baby with two hands face down - accelerate baby towards mat

Question 55

typical parachute response

Answer 55

baby ext UE out