Store NewsHaving magic changes in the body duirng sex Nervous system is the main body of internal skill regulation system, each organ system in the nervous system in the body under the unified regulation of complete different function, to adapt to the change of environment in vivo and in vitro, maintaining normal life activities.The nervous system to achieve its regulating function is the basic way of reflection events.Hand, for example, felt the KaiShuiHu come back right away, we call this process reflection, reflection events of complete requires neural pathways, neural pathways can also be called a reflex arc, reflex arc is composed of sensors, afferent nerve, central, efferent nerve, effector of five parts, such as in the example above, the hand skin is receptors, touch the water to produce hot feeling, this feeling arrive afferent nerve ganglia, the cerebral cortex, issue from the command center, knife through efferent nerve of effector - arm muscle, muscle contraction, hand will shrink back.Although this process involves five parts, but because of nerve conduction is very fast, so it is a continuous motion is almost done in a flash., of course, this is a simple reflex activity, sexual activity because it is need to mobilize the whole body many reflex activity regardless of participation, so its process is much more complex, but the basic reason is the same.Regulate visceral activity neural mechanism always called position the nervous system, includes both sympathetic and parasympathetic nerve.Most organs the sympathetic and parasympathetic innervation double, and two types of nerve in the same organs is often the opposite.Parasympathetic nerve excitement, for example, can make the bladder detrusor contraction, bladder sphincter, and thus contribute to urinate.While the sympathetic nerve excitement when the bladder detrusor is flabby, bladder sphincter contraction, inhibition of micturition.Control plant has two levels of central nervous activity, spinal cord with adjustment of the primary central plant sex function.Some of the most basic reflection of activity in the human body can be done within a center in the spinal cord, such as vascular tension reflex, sweating reflex, micturition reflex, defecation reflex, erectile reflex, etc.The human brain is the senior center of the regulating function of plant.Higher animals if senior central damage, the function of the movement of the body will be severely affected, the function will be affected by a certain plant, lost the ability to fine adjustment.The beginning of the 20th century, Pavlov, through the method of scientific experiments, founded the theory of higher nervous activity.The basic way of higher nervous activity is mainly conditioned, it is one of the advanced skills of brain.Conditioning is acquired in the process of individual development.Human sexual activity by the regulation of plant nerve, penile erection and ejaculation, vaginal constriction, vaginal leakage liquid increase, the pelvic muscles involuntary contraction absorption and a series of changes.These activities are the primary central of the spinal cord and brain, a senior central dual control.Animals of sexual activity is a kind of conditioned reflex, when hormone change, produce heat phenomena, such as heterosexual, immediately mating action happens.But both sexual activity for the first signal system, also have the effect of the second signal system.People not only under the stimulation of specific image of the opposite sex after will produce sexual excitement, and after receiving text abstraction stimulus such as sexual response.On the other hand, the human brain has a strong inhibitory effect on sexual activity, although human sexual impulse and not transformation initiative actions immediately.Masturbation and make the penis erect, does not need through the brain, which belongs to the primary central - the control of the spinal cord reflex activity;After the erectile tissue of the vision of the stimulation of the body such as senior center must be through the brain.In the neural regulation of sexual activity, there is also a difference between men and women: the male sexual activity in the second signal system seems to be more than women, for all kinds of signals have strong reaction, but women need to accept a caress - pure physical contact, can achieve sexual excitement. www.noahpills.com |Other news for Sunday 04 January, 2015 View all news for Sunday 04 January, 2015 on one page News for Tuesday 30 December, 2014 View all news for Tuesday 30 December, 2014 on one page Recent News
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