Explore the Biological Bases of Behavior Test. Prepare with engaging flashcards and multiple choice questions, each featuring explanations. Start practicing today!

Multiple Choice

Which subdivision of the autonomic nervous system calms the body?

The parasympathetic division of the autonomic nervous system is responsible for calming the body. It promotes rest and digestion, slows the heart rate, constricts the pupils, and stimulates activities like digestion and energy conservation. This system counterbalances the sympathetic division, which ramps up arousal during stress or danger (the fight-or-flight response). The autonomic nervous system manages involuntary functions, while the somatic nervous system controls voluntary movements of skeletal muscles. So, the calming, rest-and-digest actions come from the parasympathetic subdivision.

The parasympathetic division of the autonomic nervous system is responsible for calming the body. It promotes rest and digestion, slows the heart rate, constricts the pupils, and stimulates activities like digestion and energy conservation. This system counterbalances the sympathetic division, which ramps up arousal during stress or danger (the fight-or-flight response). The autonomic nervous system manages involuntary functions, while the somatic nervous system controls voluntary movements of skeletal muscles. So, the calming, rest-and-digest actions come from the parasympathetic subdivision.