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Multiple Choice
Sympathetic is to 'fight or flight' as parasympathetic is to:
A
increased heart rate
B
pupil dilation
C
sweating
D
rest and digest
Verified step by step guidance
1
Step 1: Begin by understanding the autonomic nervous system (ANS), which is divided into two main branches: the sympathetic and parasympathetic systems. These systems regulate involuntary physiological processes such as heart rate, digestion, and respiratory rate.
Step 2: Recall the primary function of the sympathetic nervous system. It is responsible for the 'fight or flight' response, which prepares the body to respond to stress or danger. This includes increased heart rate, pupil dilation, and sweating.
Step 3: Contrast this with the parasympathetic nervous system, which is responsible for the 'rest and digest' response. This system promotes relaxation and recovery by slowing the heart rate, stimulating digestion, and conserving energy.
Step 4: Analyze the options provided in the question. Increased heart rate, pupil dilation, and sweating are all physiological responses associated with the sympathetic nervous system, not the parasympathetic system.
Step 5: Conclude that the correct answer is 'rest and digest,' as it accurately describes the primary function of the parasympathetic nervous system in maintaining homeostasis during non-stressful conditions.