What is the principle of penis erection?

Everyone knows that the penis is a key male reproductive organ. This organ is as important to men as female breasts. It is indispensable. The male penis usually becomes erect during intercourse so that the entire physiological behavior can be fully performed during intercourse. Therefore, it is very important for men. What is the principle of penis erection? Many people are curious about this question. Let's take a look at the introduction below.

The penile blood vessels themselves and the blood supply play an extremely important role in the mechanism of penile erection, because the essence of penile erection is a vascular congestion reaction. If there is a problem with these blood supply systems, it will certainly cause poor penile erection. The branches of the internal penile artery are: the dorsal penile artery located outside the tunica albuginea on the back of the penis, the penile cavernous artery running along the corpus cavernosum of the penis, and the two bulbar urethral arteries on the ventral side of the urethra running along the corpus cavernosum of the urethra. The terminal branches of these arteries, namely the spiral arteries, terminate in small capillaries, which in turn open directly into the corpus cavernosum cavity. There are two pathways for venous return: the superficial dorsal vein drains the blood of the entire urethral corpus cavernosum (including the glans penis and urethral bulb), and the deep dorsal vein drains the blood of the penile corpus cavernosum.

The penis is like an amazing natural hydraulic machine. The physiological response of erection and regression is manifested as the blood dynamic changes of an organ under a certain volume, which is the inflow and outflow. Depending on the size of the penis, the increase in blood volume during erection is about 80-200 ml. When the penis is erect, the internal artery of the penis dilates, and the blood flow into the penis is 8 times greater than when it is relaxed. When it reaches 120 ml/min (the pressure in the cavernous body increases to about 75 mmHg), an erection is caused. Once an erection is achieved, the blood flow to maintain an erection only needs about 60% of the original perfusion rate, or 70 ml/min, which shows that the veins are not completely closed. If the veins are completely closed, it can only cause penile edema and cyanosis, not a true erection. For young people, an erection only takes 5 seconds, while for older people it may take 6-7 minutes. This shows that a person's physical strength, energy, psychological and spiritual factors also have a certain impact on sexual desire and penile erection during the aging process.

The principle of penis erection is very complicated. Because it is the result of natural evolution and an important part of human physiology, men are very concerned about this issue. At the same time, men should be moderate in sexual intercourse and not overuse the penis, otherwise it will easily cause fatigue and damage their physical health.