System Nervous Autonomic

The autonomic nervous system, also known as the autonomic or visceral nervous system, plays an important role in regulating the internal organs and systems of the body. This system controls functions that are beyond our free will, such as breathing, heart rate, food digestion, and much more.

The autonomic nervous system consists of two interacting subsystems - sympathetic and parasympathetic. The sympathetic subsystem is activated in response to stressful situations, physical exertion, or a threat to safety. It increases the heart rate, dilates the airways, increases blood glucose levels and inhibits the digestion of food. The parasympathetic subsystem, on the contrary, is activated in states of relaxation and rest. It slows the heart rate, narrows the airways, speeds up the digestion of food and helps the body regain energy.

Both subsystems work closely together, ensuring a balance between activity and relaxation of the body. Disturbances in the functioning of the nervous autonomic system can lead to various diseases, such as arterial hypertension, bronchial asthma, irritable bowel syndrome and depression.

It is important to note that the autonomic nervous system does not completely control the internal organs and systems of the body. Some functions, such as hormone production, are regulated by the endocrine system, while others, such as immune responses, are controlled by the immune system. However, the autonomic nervous system plays an important role in the general regulation of the body and maintaining its homeostasis.

In general, the autonomic nervous system is an important component of our body, providing control and regulation of many important functions. Thanks to the work of this system, we can adapt to changing environmental conditions and maintain our health and well-being.

**The nervous vegetative system** is a system of organs that ensure their work in conditions of a frequently changing external environment. 1. It arises in the process of evolution long before the development of the nervous system and ensures the maintenance of constancy of the internal environment (homeostasis), homeostasis mainly of material substances (water- salt, protein metabolism, iron metabolism) and neurotransmitters functioning