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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Reflex which is not present in child at bih is -
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The correct answer is  Ans. is 'b' i.e., Symmetric Tonic neck reflex Tonic neck reflex is divided into two types (a) Asymmetric Tonic neck reflex (b) Symmetric Tonic neck reflex Asymmetric Tonic neck reflex o Turn infants head to one side :- Extension of the Arms and legs occur on the side of the body corresponding to the direction of the face while flexion occurs in contralateral extremity o It is present at bih fully developed at 1 month and last 6-7 months Symmetric Tonic neck reflex o Extension of legs causes flexion of the arms and the`head. o Flexion of legs causes extension of the arms and the head (This is often referred to as cat's reflex ) o Not present at bih Crossed extensor reflex (Ghai 6thie p 146) o When the foot is stroked while the leg is kept extended at the knee, there is rapid flexion, adduction and then extension of the opposite leg. o It is present at bih.