autonomic nervous system, which is also called autonomic, has several units or parts.One of them - the sympathetic nervous system.The division into sections based on the functional and morphological characteristics.Another subspecies is the parasympathetic nervous system.
In the life of a living organism nervous system performs a wide range of features that makes it a very high importance.By itself, the system is complex and has several divisions and sub-species, each of which takes on some of the functions.Most interesting is that the first time such a thing as the sympathetic nervous system appeared in 1732.Originally, the term was used to describe the entire autonomic nervous system.But as the accumulated knowledge of scientists, they realized that here lies a much more extensive reservoir, so this notion began to refer to only one subspecies.
If we consider the specific values, it turns out that the sympathetic nervous system performs quite interesting functions for the body - it is responsible for the consumption of resources and for the mobilization of forces in emergency situations.If the need arises, the sympathetic system increases the waste of energy that the body could continue to function and perform their tasks.When we talk about the hidden opportunities and resources, we mean just that.The way the system will cope with this, will depend on the condition of the body.
However, all this is a strong stress for the body, so long in this mode, it can not function.Here comes in the parasympathetic system, tasked with restoring resources and their accumulation, so that later the man was able to perform the same tasks, but its capabilities are not restricted.The sympathetic and parasympathetic nervous system provide normal functioning of the human body in different conditions.They work intimately and constantly complement each other.
anatomical device
The sympathetic nervous system is quite complex and branched structure.The central part is located in the spinal cord and nerve connects various peripherals and components in the closure body.Actually the end of the sympathetic nerves are connected in multiple tissues innervated plexus.
Peripherals system formed due to a variety of sensory afferent neurons, which runs special processes.They are removed from the spinal cord and harvested mainly in prespinal and paravertebral sites.
functions sympathetic
As mentioned earlier, the sympathetic system is fully activated during stressful situations.In some sources it is called reactive sympathetic nervous system, because it should give some body's response to the situation, formed from the outside.
At this point in the adrenal gland begins to produce adrenaline, which serves as a base material, allows a person to better and faster response to stressful situations.However, a similar situation may occur during exercise, when the expense of adrenaline release a person begins to cope better with her.The secretion of adrenaline increases the effects of the sympathetic system, which is beginning "to provide" resources for increased energy consumption, because the adrenaline only stimulates various organs and senses, but not by itself a resource.
effect on the body is high enough, because then a person is experiencing fatigue, weakness, and so on, depending on how long the effect lasted adrenaline and how long the sympathetic system to expend resources to support the work of the body at the same level.
