Question

When Brian touches a hot object, which body structures help him react appropriately to protect himself?

Answer 1

The answer if or question would be question 2

Answer 2

Answer:

Option C, the sensory neurons, the interneurons, and the motor neurons

Explanation:

When anyone touches  any hot object,  a series of processes starts with in the body which messages the affected part of the body to quickly respond and keep itself away from that hot object.  

These series of processes is collectively termed as reflex arc. This arc start from the point where the hot sensations are received (let’s say a hand) and ends at the point where the hand receives a message to remove itself away from the hot object.  

The sensory nerves in the sensory organ i.e skin ,  sends signals to the inter neurons of the spinal nerves which process the received information and again send a message via motor neuron to the sensory organ to snatch itself away from the hot object.  

This process involves interaction between sensory nerve – inter neurons (in the spinal cord) and the motor neurons. Thus option C is correct.