Primitive Reflexes

Question 0

Symmetrical Tonic Neck Reflex (STNR)

Answer 0

Stimulus: head position, Flexion or extension
Response: if in Flexion, arms are flexed, legs extended; if in extension, arms are extended, leg flexed
Interfere: ability to prop, hands and knees position, reciprocal crawling

Question 1

Asymmetrical Tonic Neck Reflex (ATNR)

Answer 1

Stimulus: head position, turned to one side
Response: arm & leg on face side extended; arm and leg on scalp side flexed
Interference: feeding, visual tracking, development of crawling

Question 2

Tonic Labyrinthine Reflex (TLR)

Answer 2

Stimulus: position of labyrinth in inner ear- reflected in head position
Response: in supine, body & extremities are extended; in prone, body & extremities are flexed

Question 3

Galant reflex

Answer 3

Stimulus: touch skin along spine from shoulder to hip
Response: lateral Flexion of trunk to side of stimulus

Question 4

Palmar Grasp reflex

Answer 4

Stimulus: pressure in palm on ulnar side of hand
Response: Flexion of fingers causing strong grip

Question 5

Plantar Grasp reflex

Answer 5

Stimulus: pressure to base of toes
Response: toe Flexion

Question 6

Rooting reflex

Answer 6

Stimulus: touch on cheek
Response: turning head to same side with mouth open

Question 7

Moro reflex

Answer 7

Stimulus: head dropping into extension suddenly for a few inches
Response: arms abduct with fingers open, then cross trunk in Adduction: cry

Question 8

Startle reflex

Answer 8

Stimulus: loud, sudden noise
Response: similar to Moro response, but elbows remain flexed and hands closed

Question 9

Positive Support reflex

Answer 9

Stimulus: weight placed on balls of feet when upright
Response: stiffening of legs and trunk into extension

Question 10

Walking (Stepping) reflex

Answer 10

Stimulus: supported upright position with soles of feet on firm surface
Response: reciprocal Flexion/extension of legs