The vagus nerve is part of which system?
Correct answer: B. Parasympathetic nervous system
- A. Sympathetic nervous system
- B. Parasympathetic nervous system
- C. Somatic nervous system
- D. None of the above options are correct
Explanation
The vagus nerve is primarily involved in the parasympathetic nervous system, which is responsible for regulating various involuntary bodily functions, including digestion, heart rate, and certain aspects of the immune response. It helps to promote 'rest and digest' activities, counterbalancing the 'fight or flight' responses of the sympathetic nervous system. The sympathetic nervous system focuses on immediate responses to stressors, while the somatic nervous system handles voluntary movements. Therefore, the correct answer is the parasympathetic nervous system.
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About Coordination and Control
Coordination depends on receptors, neurons, synapses and nerve impulses, with reflex actions traced through the reflex arc and the roles of major brain regions. Chemical coordination covers endocrine glands and hormones, including how hormones regulate growth, metabolism, reproduction and internal balance, unlike rapid nervous control.
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