Nerve fibers Vasomotor

Vasomotor nerve fibers are one of the types of nerves that regulate the functioning of blood vessels. They are responsible for increasing or decreasing the lumen of blood vessels, thereby affecting blood pressure and blood circulation in the body.

In the human body, these fibers control contractions of the smooth muscles of the vessel wall. When the nerve sends commands to the vessels to contract muscles, the vessels narrow and the pressure in them increases. This helps push blood through narrow areas of blood vessels, increasing blood flow.

After the nerve impulse has passed through the fibers, blood flow through the narrowed section of the vessel is restored. At this moment, the vessels dilate, the pressure decreases, and blood flow increases. These processes are repeated cyclically, ensuring constant blood flow in the vessels of the body.

Vasomotor peripheral nerve fibers are used in medicine and research to determine the diagnosis and treatment of various diseases. For example, vasospasm, leading to impaired blood flow in the extremities, is a sign of many painful conditions, such as diabetes. And dilatation of blood vessels in the study of the central nervous system is used to identify disorders of cerebral vascular tone.