Primitive Reflexes

Question 1

Moro

Answer 1

Appear: birth
Resolve: 5-6 mo

Question 2

Asymmetric Tonic Neck Reflex

Answer 2

Appear: birth
Resolve: 1-3 mo

Question 3

Sucking

Answer 3

Birth
Resolve: 4 mo

Question 4

Galant / trunk incurvation

Answer 4

Birth
6 months

Prone. Stroke one side of spine. Infant twitches hips towards side of stimulus

Question 5

Palmer grasp

Answer 5

Birth
5-6 mo

Question 6

Plantar grasp

Answer 6

Birth
9 - 10 mo

Question 7

Rooting

Answer 7

Birth
2-3 mo
Stroke cheek. Infant turns toward w sucking motions

Question 8

Stepping

Answer 8

Birth
2-3 mo

Question 9

Landau

Answer 9

4 months
2 years

Ventral suspension. Head flexes, elbows, hips and knees flex

Question 10

Parachute

Answer 10

6 month
Persists

Ventral suspension
Head forward / down as if falling
Extends upper line to break fall

Question 11

Cause of absent primative reflex

Answer 11

Basal ganglia or brainstem dysfunction

Question 12

Cause of asymmetric reflexes

Answer 12

Hemiplegia —> CP

Question 13

Persistent primitive reflexes

Answer 13

UMN problem eg CP

Question 14

Approach to exam

Answer 14

IHUGVIDEP
Prim reflexes
- lying: suck, root, palmar, plantar, ANTR
- 180: stepping, landau, parachute
- prone: galant
- Moro

Neuro exam