What is the term for the reflex that disappears around 6 months of age, and is activated when support for the neck and head is suddenly removed? The arms of the infant are thrust outward and then appear to grasp onto something.

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The reflex described is the Moro reflex, which is activated when support for the head and neck is suddenly removed. The infant responds with a startle and the arms are thrust outward before they appear to grasp onto something. This reflex typically disappears around 6 months of age. A is incorrect as the Babinski reflex involves the toes spreading out when the sole of the foot is stimulated. B is incorrect as the rooting reflex is the turning of the head and mouth towards a stimulus, such as touching the cheek. D is incorrect as the startle reflex is a normal reflex to a sudden, unexpected noise or movement.

What Is the Term for the Reflex That Disappears Around