Which phase describes the autonomic system responsible for "rest and digest" functions?

The parasympathetic nervous system is the part of the autonomic nervous system that is primarily responsible for "rest and digest" functions. This system helps to conserve energy and is active during periods of rest and relaxation. It promotes bodily functions that occur when the body is in a state of calm, such as stimulating digestion, slowing the heart rate, and facilitating the body’s recovery and maintenance processes.

During parasympathetic activation, the body undergoes various physiological changes. For example, it increases secretions of digestive enzymes, stimulates peristalsis (the movement of the digestive tract), and promotes increased blood flow to the intestines, all of which work together to optimize the body’s ability to digest food and absorb nutrients.

This phase contrasts with the sympathetic nervous system, which handles "fight or flight" responses, increasing heart rate and redirecting blood flow away from the digestive tract to muscles and vital organs for immediate action. The central nervous system (CNS) refers more broadly to the brain and spinal cord, while the sensory nervous system pertains to the aspects of the nervous system that handle sensory information and perception, not the regulation of bodily functions associated with rest and digestion.

Therefore, the designation of the parasympathetic system as