evolution leads to the appearance of a variety of changes in the body of living creatures that helped them adjust to external environmental conditions and survive in this world.When we talk about the changes we have in mind not only the external features, internal changes in the body are important even to a greater extent.Primarily, this is due to the vital processes of any organism.In the early stages of evolution began to take shape humoral regulation as one of the mechanisms of these processes.
Its value is large enough for the living being, because it allows you to coordinate a variety of biological and chemical processes by means of fluids.It performs this function humoral regulation.The fluid acts as blood, lymph, and various tissue fluids, as they are important for the body and largely constitute a significant part of it.Humoral regulation is possible because the cells, tissues and organs in their ability to live emit a variety of biologically active substances.These include, first of all, hormones, and metabolites, but also found in other species.
Humoral regulation in humans
This process began to emerge in living beings for a long time, it is found in many, but has certain differences depending on the species.Especially a human, as well as some types of highly complex animals: these processes are subject to nervous regulation.Nervous and humoral regulation together constitute a single system operation.Its scientific name neurohumoral regulation, and studied it, as a rule, only in this way.
During metabolism secrete certain products affecting the effector organs and nerves, nerve centers.This reflex or humoral caused by certain reactions necessary for normal functioning of the body.
If we consider the example of similar reactions of the human body, some of them begin to work when you need to restore livelihoods.During physical exertion accelerates metabolism, quickens the heartbeat and breathing.The load on the muscles provokes the need to speed up the heartbeat, to provide them with oxygen.This in turn leads to the fact that the blood becomes too much CO2, but in order to get rid of it, you must increase in breathing - because the body restores the lack of oxygen and gets rid of carbon dioxide.This is an example of humoral regulation.
Nervous regulation
From the foregoing, it is clear that these processes are essential for a highly developed organism, and are found everywhere.In humans, all connected to a single neurohumoral system, because any reaction caused by nerve impulses transmitted directly Chemicals - mediators.At the same time involved in such processes and other substances, including hormones.Present operation of the system without any single link impossible.It is also necessary to take into account the fact that the humoral regulation of body functions carried out continuously, but it can not occur on a global scale.
to implement such processes should take into account the characteristics of all body fluids.In particular, their biological activity is dependent on the specific content of the various elements in them - adrenaline, catecholamines, histamine, acetylcholine, serotonin, various enzymes and inhibitors, as well as many others.Accordingly, referring to the regulatory processes taking place with the help of these fluids, it is necessary to take into account their composition.
