Infant Reflexes 2

Question 1

Palmar Grasp Reflex

Answer 1

Stimulus:Pressure in palm on ulnar side of hand
Response: Flexion of fingers causing strong grip
Normal Age: birth to 4 months

Question 2

Plantar Grasp Reflex

Answer 2

Stimulus: pressure to base of toes
Response: toe flexion
Normal Age:28 weeks gestation to 9 months

Question 3

Rooting Reflex

Answer 3

Stimulus: Touch on cheek
Response: turning head to same side with open mouth
Normal Age: 28 weeks gestation to 3 months

Question 4

Moro Reflex

Answer 4

Stimulus: Head dropping into extension suddenly for a few inches
Response: arms abduct with fingers open, then cross trunk into adduction; cry
Normal Age: 28 weeks gestation to 5 months

Question 5

Startle Reflex

Answer 5

Stimulus: Loud, sudden noise
Response: similar to moro, but elbows remain flexed and hands closed
Normal Age: 28 weeks gestation to 5 months

Question 6

Positive Support Reflex

Answer 6

Stimulus: Weight placed on balls of feet when upright
Response: stiffening of legs and trunk into extension
Normal Age: 35 weeks gestation to 2 months