Let 's talk More detailed about Viagra

The true role of nitrogen monoxide in human physiology has become understandable only in the past decade. This gas is a vital chemical element of the body. Researchers found that the nitrogen monoxide is necessary for a large number of different physiological processes, such as the transfer of nerve impulses, immune reactions and regulation of vascular tone. Thanks to the duly expansion of penis vascular erection happens.

When excitation of penis occurs NO is moving from one muscle cell to another, conveying a signal to relax. During the relaxation of the muscle cells additional nitrogen monoxide is allocated, which, in turn, provokes a chain reaction in nearby biocides of muscle cells (artery walls and empty spaces). Each molecule of nitrogen monoxide transmits the same signal to each muscle cell, however much they are at the whole length of the penis arteries, involving another chemical compound-cyclical adenozinmonophosphoric acid- c-AMP) into a chain reaction. And when all cells of vascular walls simultaneously produce the cycling AMP, the muscles of penis begin to relax. Arteries extend and more blood flows to penis.

Erection occurs because of the overwhelming blood fills the penis. But there are men who are unable to have erection because of disorders. Here is a help for them-VIAGRA. This drug guarantees a concentration of cyclical AMF in the body, which is effective for increasing of arteries, and will support them in the expanded state for quite a long time. That