What are the structural and functional divisions of the autonomic nervous system?

What are the two major functional divisions of the autonomic nervous system?

The autonomic nervous system has two main divisions:

  • Sympathetic.
  • Parasympathetic.

What is the main function of each division in the autonomic nervous system?

Key Points

Sympathetic and parasympathetic divisions have complementary roles: the sympathetic division functions in actions requiring quick responses (fight or flight) and the parasympathetic division regulates actions that do not require rapid responsiveness (rest and digest).

What is another name for the autonomic nervous system?

The autonomic nervous system (ANS) is also called the vegetative nervous system. It controls the involuntary functions and influences the activity of internal organs.

What are the two divisions of the nervous system?

The nervous system has two main parts:

  • The central nervous system is made up of the brain and spinal cord.
  • The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body.

What are the 2 divisions of the autonomic nervous system give examples of their antagonistic action?

These organs are said to be “dually innervated.” Typically, the parasympathetic and sympathetic systems will have antagonistic effects on the organs. For example, the heart is innervated by both divisions of the ANS, the parasympathetic division slows down heart rate and sympathetic innervation increases heart rate.

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Is sweating autonomic or somatic?

Examples of body processes controlled by the ANS include heart rate, digestion, respiratory rate, salivation, perspiration, pupillary dilation, urination, and sexual arousal. The peripheral nervous system (PNS) is divided into the somatic nervous system and the autonomic nervous system.

What are the 2 subsystems of autonomic nervous system?

The autonomic nervous system comprises two antagonistic sets of nerves, the sympathetic and parasympathetic nervous systems. The sympathetic nervous system connects the internal organs to the brain by spinal nerves.