Post Date December, 03 2023
The male penis consists of two penile cavernous bodies and one urethral cavernous body. The cavernous body is a spongy reticular structure composed of smooth muscles. The spaces between the reticular structures are cavernous sinuses, which are directly connected to blood vessels.
The cavernous body is filled with blood vessels and nerve tissue, and the most sensitive of the nerves is the sensory nerve.
When a man receives external stimuli, such as local contact stimuli, stimuli generated by the senses such as the eyes and ears, or psychological phenomena generated by consciousness, can excite the high-level nerve center. Under the regulation of the cerebral cortex, the erectile nerve center in the lumbosacral region emits erectile nerve impulses that act on the blood vessels of the cavernous body of the penis. At this point, the arterial blood vessels that allow blood to flow significantly expand, and a large amount of blood flows into the sponge body; At the same time, the venous vessels flowing out of the blood flow will be contracted, so that the blood flow will be reduced, and the blood will be fully trapped in the rich small vascular cavities in the cavernous body. As a result, the penis becomes erect.
Morning erection
