Question

Y do we response when we touch hot object or when bright light is put on our eyes??????????

Answer 1

THESE ARE IMMEDIATE RESPONSES THEY HAPPEN WITH OUT OUR KNOWING THAT'S WHY IT IS CALLED REFLEX ACTIONS .
THEY ARE DONE TO RESPONSE TO THE STIMULUS....

Answer 2

The motor nerves that carry messages from the medulla oblongata trigger reflex action because of which the above listed things occur