The parasympathetic nervous system is associated with which of the following functions?

• A. Dilating pupils
• B. Increasing heart rate
• C. Stimulating digestion
• D. Inhibiting salivation

Answer: (C)

Verified step by step guidance

1. Begin by understanding the role of the parasympathetic nervous system, which is part of the autonomic nervous system responsible for 'rest and digest' activities.
2. Recognize that the parasympathetic nervous system generally promotes functions that conserve energy and enhance bodily maintenance, such as digestion and salivation.
3. Consider the physiological effects of the parasympathetic nervous system: it typically stimulates digestion by increasing peristalsis and enzyme secretion in the gastrointestinal tract.
4. Understand that the parasympathetic nervous system also promotes salivation, which aids in digestion, contrary to inhibiting it.
5. Contrast these functions with those of the sympathetic nervous system, which is responsible for 'fight or flight' responses, such as dilating pupils and increasing heart rate.