Question

why reflex action is required in body explain​

Answer 1

Answer:

reflex action is important because when body is in danger then it needs a very quick response to overcome it

Answer 2

Nervous system - Reflexes

They happen rapidly, you don't control them and the result is always the same. Most reflexes don't have to travel up to your brain to be processed, which is why they take place so quickly. A reflex action often involves a very simple nervous pathway called a reflex arc.

When the body senses danger, the input-output of messages between the nerves and the corresponding action must be completed very quickly. The spinal cord sends the required signals to the muscles and the reflex action is completed. Since the action is instantaneous, the brain involvement is not much in reflex action.