What does the autonomic nervous system do?
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. ... Within the brain, the autonomic nervous system is regulated by the hypothalamus.
https://en.wikipedia.org/wiki/Autonomic_nervous_system
The autonomic nervous system is a part of the peripheral nervous system that is responsible for controlling the involuntary functions of the body, such as heart rate, digestion, breathing, and glandular activity. It works to maintain homeostasis, or the balance within the body, by regulating these functions without conscious control.
To understand what the autonomic nervous system does, you can start by looking for reliable sources such as textbooks, scientific articles, or reputable online resources. These sources will provide detailed information about the functions and mechanisms of the autonomic nervous system.
Once you have gathered the necessary information, you can break it down into key points:
1. Involuntary functions: The autonomic nervous system controls bodily functions that occur automatically without conscious effort. These functions include heart rate, blood pressure, digestion, breathing, and perspiration.
2. Sympathetic division: The sympathetic branch of the autonomic nervous system prepares the body for "fight or flight" responses in stressful situations. It increases heart rate, dilates blood vessels, and releases stress hormones like adrenaline.
3. Parasympathetic division: The parasympathetic branch of the autonomic nervous system promotes the body's "rest and digest" responses. It slows down heart rate, constricts blood vessels, and stimulates digestion.
4. Nerve pathways: The autonomic nervous system is composed of motor neurons that transmit signals from the brain and spinal cord to various organs and tissues. These signals control the release of neurotransmitters that regulate physiological processes.
5. Disorders and dysfunctions: Dysfunctions in the autonomic nervous system can lead to conditions like autonomic neuropathy, orthostatic hypotension, and dysautonomia. These conditions can cause problems with blood pressure regulation, digestion, and other autonomic functions.
By following this process, you can gain a better understanding of what the autonomic nervous system does and its role in maintaining the body's overall functioning.