MEDICAL PHYSIOLOGY

Detailed explanation-1: -You will will automatically move your hand away in a process known as the relex arc. Your natural ‘reflex’. thermal sensors in your fingers will sense the heat and send electrical impulses along your sensory neurones.

Detailed explanation-2: -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-3: -When a message comes into the brain from anywhere in the body, the brain tells the body how to react. For example, if you touch a hot stove, the nerves in your skin shoot a message of pain to your brain. The brain then sends a message back telling the muscles in your hand to pull away.

Detailed explanation-4: -We move our hand away from a hot object. This is due to responsiveness to stimuli. When we touch a hot object the sense organs feel the temperature and the hand is withdrawn. The stimulus is carried to the brain by the sensory neuron while it is carried back to effector organs by motor neurons.

Detailed explanation-5: -The sensory neurons are at first activated that take information spinal cord/Brain . Information. Then, the motor neurons are activated and bring the brain impulses to the muscles. The muscles get contracted and we remove our hand immediately from the hot plate when these impulses are received.