How Ding Ding Erected Scientifically Reveals the Whole Process of Ding Ding's Erections

When a man is subjected to sexual stimulation, the penis will naturally erect its genitalia in order to engage in sexual activity. Most people only know that penile erection is a normal physiological phenomenon, caused by congestion, and is also affected by sexual hormones. So, who knows the detailed process of its true erection? I'm afraid nobody understands. So, let science take us here to explore the magical process of penile erection!

The blood circulation process of the penis

The penile blood vessels themselves and the supply of blood flow play an extremely important role in the mechanism of penile erection, as the essence of penile erection is a vascular congestion reaction. If these blood supply systems malfunction, of course, it can cause poor penile erection. The branches of the internal penile artery include the dorsal penile artery located outside the tunica albuginosa on the back of the penis, the penile cavernous artery running along the corpus cavernosum, and two bulbous urethral arteries running along the urethral cavernous body on the ventral side of the urethra.

The terminal branches of these arteries, namely spiral arteries, terminate at small capillaries, which in turn directly open into the cavernous cavity. There are two pathways for venous reflux: the superficial dorsal vein drains blood from the entire corpus cavernosum of the urethra (including the glans and urethral bulb), and the deep dorsal vein drains blood from the corpus cavernosum of the penis.

The cavernous cavity that dominates penile erection

The three cavernous cavities perform the function of erectile tissue in the penis, with the glans and urethral cavernous bodies providing volume, while a pair of penile cavernous bodies providing hardness. The tissue is divided into many irregular spaces, also known as blood sinuses, by fibers called trabeculae and smooth muscle bands. The surface of the sinus spaces is covered with endothelium.

The sinus gap located in the center of the corpus cavernosum is relatively large, with a diameter of 1-9 millimeters when the penis is highly congested, and an inconspicuous gap when relaxed. Each blood sinus has a deep artery and output vein that are directly connected to it, and there is a direct communicating branch between the deep artery and output vein, called an arteriovenous shunt system. Valvular smooth muscle folds exist on the walls of deep arteries, output veins, and arteriovenous short circuits, regulated by erectile nerves.

When nerve impulses act on this fold, the deep arteries of the sinus are completely open, while the walls of the output vein and the communicating branches of the arteriovenous system are partially closed, resulting in an increase in blood flow into the sinus, leading to filling and erection of the corpus cavernosum. Then, the outflow of blood from the deep vein decreases and selectively accumulates in the cavernous sinus. The smooth muscles in the cavernous tissue relax, and the blood sinus expands due to being filled with blood, resulting in a significant increase in the volume of the penis. However, the white membrane does not infinitely expand, ultimately achieving the required hardness of the erect penis.

The main role in erections is played by the arteries, but it is also important to partially close the valves of the venous blood vessels within the penis and restrict venous blood flow. If the blood discharge system is not fully closed and the venous discharge flow is too large, erections can decrease and form erectile dysfunction. In addition, failure to close the arterial and venous branches during erection can also cause impotence.

Changes in the body of the penis after ejaculation

After ejaculation, due to the excitation of sympathetic nerve fibers in the hypogastric nerve, the internal penile artery contracts, causing thickening of the smooth muscle folds of the deep sinus artery wall, forming a valve like partial closure, reducing sinus blood flow, fully opening the communicating branch of the output vein, increasing venous reflux, and quickly weakening the penis.

The penis is like an astonishing natural hydraulic mechanical device, and the physiological response of erection and regression is manifested by the hemodynamic changes in the inflow and outflow of an organ at a certain capacity. According to the size of the penis, the increase in blood volume during erection is approximately 80-200 milliliters. When the penis is erect, the internal arteries of the penis dilate, and the blood flow into the penis is 8 times greater than when it is relaxed. When it reaches 120 milliliters per minute (the pressure inside the cavernous body increases to about 75 millimeters of mercury), it causes an erection. However, once an erection is established, maintaining the blood flow of the erection only requires about 60% of the original perfusion rate, or 70 milliliters per minute, indicating that the vein is not completely closed. If the vein is completely closed, it can only cause penile edema and cyanosis, rather than a true erection.

TIPS:

In our country, an erection only takes 5 seconds for men, while it may take 6-7 minutes for the elderly. This indicates that physical, mental, and psychological factors also have a certain impact on libido and penile erection as people age. At the same time, the duration of erection can also be affected. If you want to use healthy and reasonable methods to extend the erection time of the penis.