Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
The Babinski reflex is a physical response where a baby's big toe moves upward or toward the top surface of the foot and the other toes fan out when the sole of the foot is firmly stroked.
Related terms
Motor Skills Development: This refers to changes in a child's ability to control his or her muscles for purposeful movements.
Neonatal Reflexes/Primitive Reflexes: These are survival reflexes that babies are born with; they disappear as babies mature.
Pediatric Neurology: This branch of medicine deals with neurological problems in children (from birth till adolescence).