Question

Juan picks up a steel utensil and immediately drops it because it’s extremely hot. How does the reflex arc work to protect Juan from a worse burn?
In a reflex arc, __A__ neuron carries the action potential from the __B__.

A. *Motor
*Relay
*Sensory

B. *Brain to the spinal cord
*Sense organ to the brain
*Spinal cord to the muscle

Answer 1

Sensory

Brain to the spinal cord

Hope this helps.

Answer 2

Answer: A - Sensory

B - Spinal cord to muscle

Explanation:

Upon receiving the external stimulus, a sensory neuron is activated which does not directly pass into the brain, but instead goes to the spinal cord.

This brings about a quick reflex in which the spinal cord will send a motor neuron to the muscle to react to the external stimulus.