
Обьясните почему вегетативную нервную систему называют автономной системой.


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Если помог,не забываем говорить спасибо,удачи =)



Саме завдяки вегетативної нервової системи можуть нормально здійснюватися основні функції організму: кровообіг, травлення, дихання, обмін речовин і т.д. Виходячи з цього, легко можна бачити, яке величезне значення вона має.Вегетативна нервова система поділяється на центральний відділ, який локалізований в головному і спинному мозку, і на периферичний відділ - його клітини і волокна розташовуються у всіх інших частинах організму людини.



The Autonomic Nervous System: An Overview
The autonomic nervous system (ANS) is a division of the peripheral nervous system (PNS) that controls involuntary functions of the human body. It regulates various processes such as heart rate, digestion, respiration, and glandular secretion. The ANS is responsible for maintaining homeostasis, which is the body's ability to maintain a stable internal environment despite external changes.
Why is it called the Autonomic System?
The ANS is often referred to as the "autonomic" system because it functions independently and automatically, without conscious control. It operates involuntarily, meaning that its actions occur without conscious thought or effort. This is in contrast to the somatic nervous system, which controls voluntary movements and is under conscious control.
Divisions of the Autonomic Nervous System
The ANS is further divided into two main branches: the sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS). These two branches have opposing effects on various bodily functions and work together to maintain balance.
1. Sympathetic Nervous System (SNS): The SNS is responsible for the body's "fight or flight" response. It prepares the body for action in response to stress or danger. Activation of the SNS leads to increased heart rate, dilation of blood vessels, increased blood pressure, and increased release of stress hormones like adrenaline.
2. Parasympathetic Nervous System (PNS): The PNS is responsible for the body's "rest and digest" response. It promotes relaxation, conserves energy, and supports normal bodily functions. Activation of the PNS leads to decreased heart rate, constriction of blood vessels, increased digestion and absorption of nutrients, and increased secretion of digestive enzymes.
Conclusion
In summary, the autonomic nervous system is called the "autonomic" system because it functions independently and automatically, without conscious control. It regulates involuntary bodily functions and is divided into the sympathetic and parasympathetic branches, which have opposing effects on various bodily processes. The ANS plays a crucial role in maintaining homeostasis and ensuring the proper functioning of the body's internal environment.
_[[https://www.anahana.com/en/wellbeing-blog/physical-health/what-is-the-autonomic-nervous-system)_


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