Question

a researcher is trying to isolate the neural pathways that control movement in the lower legs. to do this, he conducts a clinical experiment in which he electrically stimulates different locations in the spinal cord of his subjects and observes their reactions. when they experience movement in their lower legs, he identifies the exact location of the stimulation to see if it is reproducible in other research. based on his methodology, his experiment can best show a clear cause - and - effect relationship between the stimulation and the movement.
elimination tool
select one answer
a sympathetic nervous system
b parasympathetic nervous system
c central nervous system
d peripheral nervous system

Explanation:

The spinal cord is part of the central nervous system. Electrical stimulation of the spinal cord to observe lower - limb movement is related to the central nervous system's role in controlling movement. The sympathetic and parasympathetic nervous systems are part of the autonomic nervous system and are not directly involved in this type of movement - related stimulation in the context described. The peripheral nervous system consists of nerves outside the brain and spinal cord, and the focus here is on the spinal cord itself which is central.

Answer:

C. central nervous system