Hawaii Massage License Practice Exam

Which part of the autonomic nervous system is responsible for the body's "rest and digest" response?

1. Sympathetic nervous system

2. Parasympathetic nervous system

3. Central nervous system

4. Peripheral nervous system

The correct answer is: Parasympathetic nervous system

The parasympathetic nervous system is responsible for the body's "rest and digest" response. This branch of the autonomic nervous system helps to conserve energy and promote a state of calm in the body, facilitating processes that occur during restful states. When activated, it slows the heart rate, increases intestinal and gland activity, and relaxes sphincter muscles in the digestive tract. The "rest and digest" response is crucial for maintaining homeostasis and allowing the body to recuperate and restore energy after periods of stress or high activity. It contrasts with the sympathetic nervous system, which prepares the body for "fight or flight" responses. By understanding the role of the parasympathetic nervous system, it's clear why this option is the correct answer—the functions it governs are essential for processes associated with relaxation and digestion.