Neonatal Reflexes

Question 1

Onset/Integration of Flexor Withdrawal reflex

Answer 1

O: 28 weeks gestation
I: 1-2 months

Question 2

Stimulus and response of flexor withdrawal reflex?

Answer 2

S: noxious stimulus (pinprick) to sole of foot
R: Toes extend, foot DF’s, LE flexes uncontrollably

Question 3

Onset/integration of crossed extension reflex?

Answer 3

O: 28 weeks gestation
I: 1-2 months

Question 4

Stimulus/response of crossed extension reflex?

Answer 4

S: noxious stimulus to ball of foot of LE fixed in EXT
R: Opposite LE flexes, then ADD and EXT

Question 5

Onset/integration of rooting reflex

Answer 5

O: 28 weeks gestation
I: 1-2 months

Question 6

Stimulus/response of rooting reflex

Answer 6

S: Stroking the side of babys cheek
R: head turns toward stimulus and mouth opens

Question 7

Onset/Integration of traction reflex

Answer 7

O: 28 weeks gestation
I: 2-5 months

Question 8

Stimulus/response of traction reflex

Answer 8

S: grasp FA and pull up from supine into sitting position
R: Grasp and total FLEX of the UE

Question 9

Onset/integration of Asymmetrical tonic neck reflex (ATNR)

Answer 9

O: birth
I: 4-6 months

Question 10

Stimulus/response of ATNR

Answer 10

S: Rot. Of head to one side
R: FLEX of SKULL LIMBS, EXT of JAW LIMBS “bow and arrow posture”

Question 11

Onset/integration of palmar grasp reflex

Answer 11

O: birth
I: 4-6 months

Question 12

Stimulus/response of palmar grasp reflex

Answer 12

S: maintained pressure to palm of hand
R: maintained flexión of fingers

Question 13

O/I or moro reflex

Answer 13

O: 28 weeks gestation
I: 5-6 months

Question 14

Stimulus/response of Moro reflex

Answer 14

S: drop patient backward from sitting position
R: Ext, ABD of UE’s hand opening and crying followed by Flex and ADD of arms across chest

Question 15

O/I of symettrical tonic labyrinthine reflex (TLR/STLR)

Answer 15

O: birth
I: 6 months

Question 16

Stimulus/response of STLR reflex?

Answer 16

S: prone or supine position
R: PRONE: increased flexor tone of all limbs, SUPINE: increased extensor tone of all limbs.

Question 17

O/I of positive supporting standing reflex

Answer 17

O: birth
I: 6 months

Question 18

Stimulus/response of positive supporting standing

Answer 18

S: contact to the ball of the foot in upright standing position
R: rigid extension (co-contraction of the LE’x

Question 19

O/I of plantar grasp reflex?

Answer 19

O: 28 weeks gestation
I: 9 months

Question 20

Stimulus/response to plantar grasp reflex

Answer 20

S: maintained pressure to ball of foot under toes
R: maintained flexion of toes

Question 21

O/I of symmetrical tonic neck reflex (STNR)

Answer 21

O: 4-6 months
I: 8-12 months

Question 22

Stimulus/response to STNR?

Answer 22

S: flex or ext of the head
R:
-Head flexion: flex of UE’s, Ext or LE’s
-Head Ext: ext of UE’s, flex of LE’s

Question 23

O/I of startle reflex?

Answer 23

O: birth
I: persists

Question 24

Stimulus/response of the startle reflex?

Answer 24

S: Sudden loud or harsh noise
R: sudden ext or ABD of UE’s, Crying

Question 25

O/I of landau reflex?

Answer 25

O: 4-5 months
I: 1 year

Question 26

S/R of landau reflex?

Answer 26

S: hold baby by stomach in the air
R: should flex/hold out UE’s and LE’s

Question 27

O/I of galant reflex?

Answer 27

O: 20 weeks gestation
I: 3-9 months

Question 28

S/R of galant reflex?

Answer 28

S: put child in prone or quadruped and stroke mid back
R: child should flex/contract at side or movement of hip outwards

Question 29

O/I Neck righting reflex?

Answer 29

O: birth

Question 30

Neck righting reflex?

Answer 30

When head turns in supine, the whole body follows

Question 31

Labyrinthine Head righting reflex?

Answer 31

Onset: 2 months

-Child maintains head upright

Question 32

Head righting/oculo head righting

Answer 32

O: 2-3 months
Reflex: head maintains vertical orientation in space relative to gravity.

Question 33

Protective extension?

Answer 33

6 months: forward