Which of the following reflexes is not present at birth –
Correct Answer: Symmetric tonic neck reflex
Description: Neonatal reflexes
A number of primitive neonatal reflexes can be elicited in a healthy term neonate.
These disappear as the child grows → These reflexes are inhibited by frontal lobes as the child grows.
The absence of reflex responses indicates dysfunction of central or peripheral motor function.
Abnormal persistence of neonatal reflexes is pathognomonic of central motor lesions.
Reflexes are
A. Reflexes present at birth
Rooting, sucking & swallowing reflexes
Moro reflex
Palmar grasp (grasp reflex)
Crossed extensor
Asymmetric tonic neck reflex
B. Reflexes appear after birth
Symmetric tonic neck - appears at 4-6 months
Parachute reflex - appears at 8-9 months
Landau reflex - appears at 10 months
Category:
Pediatrics
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