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Pediatric Reflexes

Primitive Infant Reflexes

QuestionAnswer
Tonic Labyrinthine Reflex (TLR) Stimulus Position of inner ear (labyrinth), as is reflected by head position
Tonic Labyrinthine Reflex (TLR) Response In the supine position, body and extremities are held in extension; in the prone position, body and extremities are held in flexion
Tonic Labyrinthine Reflex (TLR) Normal age of response Birth - 6 months
Symmetrical Tonic Neck Reflex (STNR) Stimulus Head position (flexion or extension)
Symmetrical Tonic Neck Reflex (STNR) Response When head is in flexion, arms are flexed, legs extended; when head is in extension, arms are extended, legs flexed
Symmetrical Tonic Neck Reflex (STNR) Normal age of response 6 – 8 months
Galant Reflex Stimulus Touch to the skin along spine from shoulder to hip
Galant Reflex Response Lateral flexion of trunk to side of stimulus
Galant Reflex Normal age of response 30 weeks of gestation - 2 months
Palmar Grasp Reflex Stimulus pressure in palm on ulnar side of hand
Palmar Grasp Reflex Response Flexion of fingers causing strong grip
Palmar Grasp Reflex Normal age of response Birth - 4 months
Plantar Grasp Reflex Stimulus Pressure to base of toes
Plantar Grasp Reflex Response Toe Flexion
Plantar Grasp Reflex Normal age of response 28 weeks gestation - 9 months
Rooting Reflex Stimulus Touch on cheek
Rooting Reflex Response Turning head to same side with mouth open
Rooting Reflex Normal age of response 28 weeks gestation - 3 months
Moro Reflex Stimulus Head dropping into extension suddenly for a few inches
Moro Reflex Response Arms abduct with fingers open, then cross trunk into adduction; cry
Moro Reflex Normal age of response 28 weeks gestation - 5 months
Startle Reflex Stimulus Loud, sudden noise
Startle Reflex Response Similar to Moro response, but elbows remain flexed and hands closed
Startle Reflex Normal age of response 28 weeks gestation - 5 months
Positive Support Reflex Stimulus Weight placed on balls of feet when upright
Positive Support Reflex Response Stiffening of legs and trunk into extension
Positive Support Reflex Normal age of response 35 weeks gestation - 2 months
Walking (Stepping) Reflex Stimulus Supported upright position with soles of feet on firm surface
Walking (Stepping) Reflex Response Reciprocal flexion/extension of legs
Walking (Stepping) Reflex Normal age of response 38 weeks gestation - 2 months
Created by: dogboy2782
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