Information about a sensory stimulus such as touch can be prevented from reaching the central nervous system by chemically blocking
A) touch receptors in the central nervous system.
B) afferent neurons from the sensory cells detecting touch.
C) graded potentials in interneurons.
D) efferent neurons carrying information to the spinal cord.
E) neurotransmitter release from interneurons in the brain.

Question

Quizplus · Accepted Answer

Afferent neurons carry sensory information from the sensory cells to the central nervous system. Chemically blocking these neurons would prevent the sensory stimulus from reaching the central nervous system. The other choices (A, C, D, and E) do not accurately describe how sensory information is blocked from reaching the central nervous system.

Information About a Sensory Stimulus Such as Touch Can Be