The portion of the nervous system that controls involuntary activities is a subdivision of

the _______ nervous system.
A. sympathetic C. peripheral
B. central D. parasympathetic

(c)

Look up each term here to double-check:

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I think D but don't depend on me to be right

The sympathetic system and parasympathetic system, which control involuntary activities, are both part of the autonomic system (ANS), which is part of the peripheral nervous system.

Sí, sí, it is C.

I hope this helps. Thanks for asking.

To determine the answer, we need to understand the different parts of the nervous system and which one controls involuntary activities.

The nervous system is divided into two main parts: the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS consists of the brain and spinal cord, while the PNS includes all the nerves that branch out from the CNS to the rest of the body.

Involuntary activities include functions like heartbeat, digestion, and breathing, which occur automatically without conscious control. These activities are regulated by the autonomic nervous system (ANS), which is a subdivision of the peripheral nervous system.

Now, we need to determine which subdivision of the PNS controls involuntary activities. The two subdivisions of the ANS are the sympathetic and parasympathetic nervous systems.

The sympathetic nervous system prepares the body for "fight or flight" responses, such as increasing heart rate and blood pressure. It helps you react to stressful situations. On the other hand, the parasympathetic nervous system promotes "rest and digest" responses, such as reducing heart rate and stimulating digestion. It helps your body relax and conserve energy.

Since the question is asking about the subdivision of the nervous system that controls involuntary activities, the correct answer is D. parasympathetic. The parasympathetic nervous system is responsible for regulating involuntary processes and maintaining homeostasis in the body.