NEET PG DENTAL EXAM

Detailed explanation-1: -If you touch something that is very hot, your hand moves away quickly before you even feel the pain. You don’t have to think about it because the response is a reflex that does not involve the brain. A reflex is a rapid, unlearned, involuntary (automatic) response to a stimulus (change in the environment).

Detailed explanation-2: -An important reflex initiated by cutaneous receptors and pain receptors is the flexor reflex. We have all experienced this reflex after accidentally touching a hot stove or a sharp object, as we withdraw our hand even before we consciously experience the sensation of pain.

Detailed explanation-3: -The stimulus is touch, your pain receptor is the sensor that senses it and relays it to the nervous system (spinal cord and brain) which is the coordinator. The coordinator makes the decision of how to react, and then commands the hand muscles (effector) to move the hand away (response).