Leonard is changing his four-month-old son's diaper, and afterwards he gets him into his pajamas. While easing the little guy's foot into the sleeper, he inadvertently strokes the boy's foot and is surprised to see the toes immediately fan out. He does it again to the other foot, and gets the same response. Leonard has accidently stumbled upon his son's ____ reflex.
A) rooting
B) palmar
C) Moro
D) Babinski

Question

Leonard is changing his four-month-old son's diaper, and afterwards he gets him into his pajamas. While easing the little guy's foot into the sleeper, he inadvertently strokes the boy's foot and is surprised to see the toes immediately fan out. He does it again to the other foot, and gets the same response. Leonard has accidently stumbled upon his son's ____ reflex.
A) ​rooting
B) ​palmar
C) ​Moro
D) ​Babinski

Quizplus · Accepted Answer

The Babinski reflex is a normal and necessary reflex seen in infants, where stroking the bottom of the foot causes the toes to fan out. This is because the neural pathways responsible for this reflex are not fully developed yet, and will eventually be replaced by more voluntary movement. The rooting reflex involves turning the head and opening the mouth when the cheek is touched, while the palmar reflex is the grasping of objects placed in an infant's hand. The Moro reflex is the startle response seen in infants, where a sudden movement or noise causes the infant to extend their arms and legs before quickly bringing them back in.

Leonard Is Changing His Four-Month-Old Son's Diaper, and Afterwards He