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What is the function of the 'Autonomic Nervous System'?

Correct answer: B. To regulate the internal environment

  • A. To act on external environment
  • B. To regulate the internal environment
  • C. To transmit motor information to the brain
  • D. None of these

Explanation

Option B is correct since the 'Peripheral Nervous System' is divided into two systems: the 'autonomic nervous system', which regulates involuntary actions such as breathing and digestion, and the 'somatic nervous system', which governs voluntary action and body reflexes. The autonomic nervous system is a control system that acts largely unconsciously and regulates bodily functions such as the heart rate, digestion, respiratory rate, pupillary response, urination, and sexual arousal. Hence, the Autonomic nervous system regulates the internal environment.

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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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