Question

which part of the autonomic system is most likely to be dominant while someone is napping after lunch?

• the peripheral nervous system
• the sympathetic nervous system
• the somatic nervous system
• the parasympathetic nervous system

Explanation:

To determine the dominant part of the autonomic system during napping:

1. Recall the functions of each option:

• Peripheral nervous system: Includes autonomic and somatic, not specific to rest.
• Sympathetic nervous system: Activates "fight or flight," dominant during stress/activity.
• Somatic nervous system: Controls voluntary movements, not autonomic.
• Parasympathetic nervous system: Promotes "rest and digest," active during relaxation (like napping).

1. Napping is a relaxed state, so the parasympathetic system (which conserves energy, aids digestion, and promotes rest) is dominant.

Answer:

D. the parasympathetic nervous system