Question

which division of the peripheral nervous system is responsible for physiological symptoms such as increased heart rate and butterflies in the stomach?
○ somatic nervous system
○ parasympathetic nervous system
○ sympathetic nervous system
○ central nervous system

Explanation:

1. Analyze each option:

• The Somatic nervous system controls voluntary movements, so it's not responsible for these involuntary physiological symptoms.
• The Parasympathetic nervous system is responsible for "rest and digest" functions, which would decrease heart rate, not increase it.
• The Sympathetic nervous system is part of the peripheral nervous system's autonomic division and is responsible for the "fight or flight" response, which includes increased heart rate and stomach discomfort (like butterflies) as it redirects resources in response to stress.
• The Central nervous system consists of the brain and spinal cord and is not a division of the peripheral nervous system.

Answer:

C. Sympathetic nervous system