Pediatric Reflex

Question 1

ATNR: Stimulus & Integration

Answer 1

1. Rotation of head causes extension of UE with other arm flexing.
2. 4-6 months

Question 2

Crossed Extension Reflex: Stimulus & Integration

Answer 2

1. Noxious stimuli to ball of foot of extremity fixed in extension; supine position
   - -Response: Flexion & adduction to extension in neutral
2. 1-2 months

Question 3

Equilibrium Reactions: Stimulus & Integration

Answer 3

1. Cog Displacement: trunk flexion & UE extension

2. Persists (you always have it..?)

Question 4

Grasp: Stimulus & Integration

Answer 4

1. Pressure on palm or ball of foot causing flexion of toes/fingers
2. 4-6

Question 5

Landau’s Reflex: Stimulus & Integration

Answer 5

1. In prone, lift/extend head for LE extension. Flex head to reduce LE extension
2. Onset 3m, integrated 2 years

Question 6

Moro Reflex: Stimulus & Integration

Answer 6

1. Sudden change in position of head/trunk –> extension/abd/hand opening/crying –> flexion/add/arms across chest
2. 5-6 months

Question 7

Optical and Labyrinthine Righting Reflexes: Stimulus & Integration

Answer 7

1. Maintain vertical head position

2. Onset 2m - persists

Question 8

Positive Support Reaction: Stimulus & Integration

Answer 8

1. Contact to the ball of the foot in an upright standing position –> rigid extension of LE c Plantarflexion/ inversion/ clawing/Hip IR
2. 6 months

Question 9

Protective Extension Reaction: Stimulus & Integration

Answer 9

1. Displace gravity –> Arms/legs extend and abduct to support body
2. onset 4-6 months for UE & 6-9 months for LE

Question 10

Rooting Reflex: Stimulus & Integration

Answer 10

1. Side of face is stimulated with light touch leads to infant turning head toward the side and opens mouth
2. 3 months

Question 11

STNR: Stimulus & Integration

Answer 11

1. Flexion of the head –> Flexion of UE & extension of LE
   Extension of head –> Extension of UE & flexion of LE
2. 8-12 months

Question 12

Tonic Labyrinthine Reflex: Stimulus & Integration

Answer 12

1. Prone –> flexion, Supine –> Extension

2. 6 months

Question 13

Traction Reflex: Stimulus & Integration

Answer 13

1. Grasp forearm & pull from supine to sitting –> infant will grasp and flex forward with head lagged behind
2. 2-5 months

Question 14

Complication of Crossed Extension Reflex and Positive Support Reflex

Answer 14

CER (1-2m) & PSR (6m) will cause hyperextension of the knee

Question 15

Complication of Crossed Extension Reflex with hemiplegia

Answer 15

When involved leg is stimulated and the unaffected limb reflexively flexes/add & extends, extensor tone in the stimulated/affected limb