Pressor receptors

Introduction

Pressure receptors are specific receptors located in various parts of the cardiovascular system and receive information about the magnitude of hydrostatic pressure. They perceive changes in pressure in the internal environment of the body and convert their information into electrical impulses. These impulses are transmitted to the brain, where information about changes in both vascular tone, hemodynamics and homeokinesis is integrated. In this article we will look at the mechanisms of functioning of pressor receptors, as well as the principles of their use in medical practice.

Description The receptor apparatus of the cardiovascular baroreceptors is formed by working cells of the Darwin cell body, which cover the peripheral parts of the vessels and are innervated by them. Their afferent endings are fibers of bipolar spinal and processes of parasympathetic neurons. Fibers of the bipolar central nervous system transmit signals to the central part of the medulla oblongata and to the higher parts of the brain, reflexively change the level of blood pressure, changing the activity of the pacemaker of the sinus node or the contractility of the smooth muscle parts of the elastic and muscular components of arterioles and cavernous sinuses. Baroreceptor cardiovascular nerves carry out