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Innate Reflex (Noun)

An automatic instinctive unlearned reaction to a stimulus.

Nouns denoting acts or actions.

Blinking in response to a sudden loud noise is an example of an innate reflex that occurs without any conscious thought or effort.
Newborn babies exhibit the innate reflex of sucking when their lips are stroked, even before they have learned to suckle from a breast or bottle.
The knee-jerk reaction is another example of an innate reflex, where the femoral nerve is stimulated and the muscle contracts, causing the knee to jerk upwards.
The withdrawal of a limb from a painful stimulus, such as touching a hot surface, is an innate reflex that occurs rapidly and without conscious intention.
Infants have an innate reflex to grasp with their hands when their palms are stimulated, a response that is often used to check for neurological development.