Fibers Nervous Autonomic

Autonomic nerve fibers are the general name of V.N., extending from the nerve cells of the autonomic nervous system, and in this sense they are opposed to the fibers of the sympathetic and parasympathetic systems. Contrary to this term, V.N. do not form either special nerves or a separate autonomic nerve. Autonomic nerve fibers are all nerve fibers extending from central and peripheral autonomic nerve cells, both in the spinal cord and medulla oblongata, and in the peripheral part of the nervous system; in their function they belong to the autonomic nerves, but unlike the latter they are neither separate nerve trunks nor part of the sympathetic or parasympathetic division of the autonomic nervous system (see Autonomic nervous system).

Autonomic nerve fibers are a group of nerve fibers that extend from the cells of the autonomic nervous system and are involved in the regulation of various body functions, such as respiration, digestion, blood circulation, etc. They are divided into sympathetic and parasympathetic, depending on which part of the autonomic nervous system they control. Sympathetic fibers stimulate the heart, increase the respiratory rate, dilate blood vessels and increase blood pressure, while parasympathetic fibers, on the contrary, slow down the heartbeat, constrict blood vessels and lower blood pressure.

In addition, autonomic nerve fibers can be both excitatory and inhibitory. Excitatory fibers increase cell activity, while inhibitory fibers reduce it. This allows you to control the functioning of various organs and systems of the body.

Thus, autonomic nerve fibers play an important role in regulating the functioning of the body and maintaining its homeostasis.

Introduction

Fibers of the nervous and autonomic type are an important element of the nervous system; they play a key role in ensuring the vital processes of the body. Fibers of this type form bundles of nerve cells that are associated with a number of physiological reactions and functions of the body.

Description

The term "autonomic nerve fibers" refers to the general names of visceral nerve fibers arising from the structures of the autonomic nervous system (ANS). These cells take part in the regulation of various processes in the body, such as respiration, digestion, cardiac activity, thermoregulation, etc. Autonomic nerve fibers are covered with myelin, so their function is to transmit electrical signals.

What is the nervous system?

The nervous system is the part of the body that coordinates its movement and interaction with the environment. It consists of neurons (nerve cells), connected

Autonomic nerve fibers

Nerve fiber is the general name for fibrous structures in the ganglia and peripheral nervous-autonomic systems. There are three types of nerve fibers: sensitive afferent, which transmit signals from outside to the central nervous system, efferent, which convert nervous information and transmit it into effectors, associative ones connecting different parts of the central nervous system. Nerve fibers are covered with a sheath that contains a large amount of