Fiber Sympathetic Postganglionic

The sympathetic postganglionic system fibers (or sympathetic postganglionic fibers) are a group of nerve fibers that transmit signals from peripheral nerve endings to the central nervous system through the postganglionic nerve ganglia. These fibers are part of the sympathetic nervous system, which plays an important role in regulating various body functions such as heart rate, breathing, blood pressure, etc.

The fibers of the sympathetic system begin in peripheral nerves, such as the spinal nerves, and end in the postganglionic ganglia. In the postganglionic ganglion, signal transmission occurs from the peripheral nerve to the central nervous system. The fibers of this system have many functions, including regulating heart rate, controlling blood pressure, and controlling breathing.

Sympathetic postganglionic nerves can be divided into two main groups: sympathetic preganglionic and postganglionic nerve fibers. Sympathetic preganglionic neurons are found in the central nervous system and transmit signals to postganglionic nerve fibers through synapses. Postganglionic nerve fibers, in turn, terminate on target cells in various tissues of the body.

In addition, the fibers of the sympathetic system can be classified according to their function or location. For example, fibers that are involved in the regulation of the cardiovascular system (for example, aortic and coronary fibers), as well as fibers that are involved in the regulation of respiration (for example, diaphragmatic fibers) are isolated.

Although sympathetic system fibers are an important part of the nervous system, they can also cause health problems. For example, dysfunction of the sympathetic system can lead to various diseases such as hypertension, arrhythmia, diabetes and others.

Sympathetic postganglionic fibers (sympathetic fibers innervating the glands) are processes of neurons of the sympathetic nervous system that leave the ganglia and are directed to the endocrine glands.

Sympathetic fibers pass through the nerve plexuses, which are located in the area of ​​organs and tissues, and innervate the glands that secrete hormones. Sympathetic fibers have a smaller diameter than motor fibers, but are more numerous and form a dense network in organs and tissues.

The fibers of the sympathetic postganglioar system are important for regulating the functioning of the endocrine glands and maintaining homeostasis in the body. They are involved in the regulation of metabolism, blood pressure, heart rate and other body functions.

If the sympathetic fibers are damaged, for example due to injury or disease, glandular dysfunction and associated symptoms may occur. Therefore, studying and understanding the functions of sympathetic postgangliary fibers is of great clinical importance.