What is ganglioblokatory

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As is known, in addition to the Central nervous system - the brain and spinal cord, in the human body there is the so-called vegetative nervous system. It presents two "chains" of nerve nodes, which are located on both sides along the spine (sympathetic trunks), systems of both stray nerves and many clusters (cores) nerve cells in the various divisions of the brain and spinal cord.
Autonomic nervous system with the help of numerous nerve branches "controls" the activity of all internal organs: heart, blood vessels, lungs, intestines, glands of internal secretion, and so on - as well as regulates the most important metabolic processes in the body. Earlier this most ancient part of the nervous system considered Autonomous, that is, independent of the Central nervous system. This view is incorrect. The brain and especially its highest division bark of the big hemispheres is constantly "directs", regulates the function of the autonomic nervous system, adapting the activities of all the internal organs to the changing conditions of existence of the body.
Throughout the human nervous system, Central and autonomic, the transfer of the institution or, as they say, nerve impulses from one nerve cell to another with the help of special complex chemical substances. These substances were called intermediaries (mediators) of nervous excitement.
More recently, scientists-pharmacologists (specialists who study the effects of drugs on the body), has opened a new group of chemicals, with selectivity temporarily block, you have to interrupt the transfer of excitation in the nodes of the autonomic nervous system. These drugs and got the name ganglioblokirtee ("ganglion" in Greek means "site").
This group ganglioblokirute funds are domestic product - ataman, pahikarpin, geksony, pentamin; foreign drugs - gexametoni, pandemic, arfonad and several others. All these substances on a human body is approximately the same.
So we're not going to stop at some not very important differences between them.
What happens if you enter the patient ganglioblokirtee drug? The coming changes are very complex and diverse, as ganglioblokatory largely "remove" the constant control under which the autonomic nervous system holds all the internal organs, particularly cardiovascular system. After the introduction ganglioblokirtee substances nerve impulses going around to all the blood vessels, will be temporarily interrupted in the nodes of the autonomic nervous system. Vessels temporarily lose your permanent tone, and this will lead to expansion of countless tiny capillaries and blood branches (arterioles). The capacity of the vascular system quickly and will increase significantly, and this, of course, will cause a sharp drop in blood pressure. Because of this property ganglioblokatory currently successfully used for the treatment of hypertension.
The maximum blood (blood pressure, i.e. the pressure existing in the vascular system at the time of each heartbeat, is in a healthy person about 115-120 millimeters of mercury. After the introduction of one of the ganglioblokirute funds this pressure can be lowered to 60 to 65 mm. However even such significant, about half, reduction in blood pressure will not bring harm to the patient, of course, provided that this reduced level will not be kept too long. The fact that the enlargement of the small and tiny blood vessels (arterioles and capillaries) the blood flow in them significantly slows down, and all the tissues and organs "have time" to extract from slower moving blood necessary quantity of oxygen. This explains the extremely important fact that after the introduction of ganglioblokirtee of the drug, despite a drop in blood pressure and volume reduction of blood supply, is not coming to hypoxia (oxygen deprivation) vital organs - brain, heart muscle, liver, kidneys.