Question

Which of the following statements is FALSE regarding the nervous system?

A. Glial cells are responsible for the support and regrowth of neurons.
B. The diencephalon is one of the components of the central nervous system.
C. Myelin is responsible for increasing conduction velocity along an axon.
D. The visceral motor system controls voluntary movements of skeletal muscle.
E. All of the above are true statements.

Answer 1

The false statement about the nervous system is that the visceral motor system controls voluntary movements of skeletal muscle. This function is actually controlled by the somatic nervous system.

Step-by-step explanation:

The statement that is FALSE regarding the nervous system is 'The visceral motor system controls voluntary movements of skeletal muscle.' The visceral motor system, also known as the autonomic nervous system, controls involuntary activities such as digestion, heart rate, and breathing. It is divided into the sympathetic, parasympathetic, and enteric divisions. The somatic nervous system, not the visceral motor system, controls voluntary movements of skeletal muscle.

Glial cells are indeed responsible for the support and regrowth of neurons. The diencephalon is a component of the central nervous system (CNS), which consists of the brain and spinal cord. And myelin does increase conduction velocity along an axon by providing an insulating layer that allows electrical impulses to jump across the nodes of Ranvier in a process called saltatory conduction.