GENERAL HISTOLOGY

Detailed explanation-1: -When a stimulus from the outside world is sensed by the sensory receptors (e.g., touching a hot pan) the sensory afferent neurons send information about that stimulus up the spinal cord to the brain where association neurons will decide how to respond.

Detailed explanation-2: -The peripheral nervous system is responsible for carrying out these actions – these are completed through motor neurons, which move your hand or stimulate the muscles of the heart, and sensory neurons which tell you that you’ve done it.

Detailed explanation-3: -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.