When a substance is placed on the anterior portion of the newborn's tongue, the newborn extrudes the substance. The nurse midwife knows that this reflex disappears at about:

Question

Quizplus · Accepted Answer

The extrusion reflex is demonstrated when a newborn extrudes any substance that is placed on the anterior portion of the tongue. This reflex prevents the swallowing of inedible substances, and it normally disappears when an infant is about four months old.

When a Substance Is Placed on the Anterior Portion of the Newborn's