True about tonic neck reflex is
a) Extension of arm on ipsilateral side, flexion on contralateral side
b) Extension of arm on contralateral side, flexion on ipsilateral side
c) Extension of arms on both sides
d) Flexion of arms on both sides
Correct Answer - A
Answer- A. Extension of arm on ipsilateral side, flexion on
contralateral side
The tonic neck reflex is produced by manually rotating the infant’s
head to 1 side and observing for the characteristic fencing posture
(extension of the arm on the side to which the face is rotated and
flexion of the contralateral arm).
An obligatory tonic neck response, in which the infant becomes
“stuck” in the fencing posture, is always abnormal and implies a
CNS disorder