Question

which statement correctly describes the path that an electrical impulse would take after someone touched a hot pot?
a. the signal travels through the nerve of the hand to the spinal cord and then to the
brain.
b. the signal travels through the spinal cord, to the nerve in the hand, and then to the
brain.
c. the signal travels from the brain, through the spinal cord, and then to the nerve in the
hand.
d. the signal travels through the spinal cord, to the brain, and then to the nerve in the
hand.

Explanation:

When a person touches a hot pot, sensory neurons in the hand detect the stimulus. The electrical impulse (signal) travels from the sensory nerve in the hand to the spinal cord (via a sensory pathway) and then to the brain for processing. Option A follows this correct pathway. Option B has the wrong order (spinal cord first then hand nerve). Option C and D describe motor pathways (from brain to effector) which is not the case here as this is a sensory input initially.

Answer:

A. The signal travels through the nerve of the hand to the spinal cord and then to the brain.