A patient becomes frightened by a loud alarm. Which response is mainly produced by sympathetic stimulation?
Correct answer: C. Increased heart rate and reduced gastrointestinal activity
- A. Slower heart rate and increased digestion
- B. Constriction of bronchioles and pupil constriction
- C. Increased heart rate and reduced gastrointestinal activity
- D. Increased salivation and intestinal movement
Explanation
Sympathetic activation prepares the body for immediate action by increasing heart rate and reducing digestive activity. Slower heart rate, increased digestion, and pupil constriction are mainly associated with parasympathetic activity.
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About Nervous System and Special Senses
The nervous system covers neurons, neuroglia, nerve impulses, synapses, reflex arcs, and the organization of the central and peripheral nervous systems. It also explains the autonomic divisions and the receptors and pathways for vision, hearing, balance, taste and smell, distinguishing sensory reception from conscious perception.
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