Question

You are able to pull your hand quickly away from hot water before pain is felt because

A) Sensory neurons transmit the pain signal faster than motor neurons.
B) The spinal cord initiates the motor response before the brain is aware of the pain.
C) The brain receives the pain signal before the motor response is initiated.
D) Motor neurons bypass the spinal cord and connect directly to the brain.

Answer 1

The spinal cord initiates the motor response before the brain is aware of the pain.

Step-by-step explanation:

The correct answer is B) The spinal cord initiates the motor response before the brain is aware of the pain.

When you touch something hot, the sensory neurons in your skin quickly send a signal to your spinal cord. The spinal cord then sends a motor response signal to the muscles in your hand, causing it to quickly pull away from the hot object. This happens faster than the brain can process the pain signal, allowing you to react quickly and avoid further injury.