Question

plz give me I'll give you brainlist answer​

Answer 1

Answer:

1. at 1 the receptors are receiving the signals and it is taking away the hand saying that it is hot
2. Spinal cord.
3. motor nerve.
4. The impulse has reached the arm muscle and it will dictate it to lift up the finger as soon as possible. (reflex action)

Hope it will help you !

thanks !

Answer 2

Answer:

(1). In art 1 upon receiving a stimulus of heat, thermoreceptors in the skin respond. In response, the hand withdraws immediately. (2). Spinal cord   (3). Motor Nerve (4). As a result of being exposed to heat, the muscles contract, and the hand is immediately withdrawn.

And please let me know if this helps.