Which reflex involves an infant spreading their toes when their foot is stroked?

The reflex that involves an infant spreading their toes when their foot is stroked is known as the Babinski reflex. This reflex is a normal response observed in infants and typically involves the big toe moving upward while the other toes fan out. It is usually present in infants up to about 18 months of age. The Babinski reflex is an important neurological indicator that helps healthcare providers assess the functioning of a child's nervous system.

In contrast, the Moro reflex is characterized by a startle response to sudden movements or loud noises, where infants will throw their arms out and then bring them back in, almost as if they are embracing. The rooting reflex involves an infant turning their head toward a touch on the cheek, which assists in feeding as it helps them find the breast or bottle. The grasp reflex occurs when an object touches the palm of an infant's hand, causing them to grasp it tightly. Each of these reflexes serves a specific purpose in early development, but the action of spreading the toes relates specifically to the Babinski reflex.