Yes, it is interesting. Ask yourself, what does your penis really look like? I’m afraid no one can say it all. Whether you look at it every day, month after month, you still can’t see it clearly, can’t say it clearly. Well, just ask me to give you a clear explanation. Of course, I only tell the story of what the penis looks like from a clinically useful aspect. The penis, the organ of a man for urination, masturbation, couple fondling, intercourse and ejaculation. No? Read on to see if that’s right. The penis can be divided into three parts: the head, the body, and the root. The front end of the penis is inflated and is called the head of the penis. At its tip is the opening of the external urethral opening, which is sagittal in shape. The thinner part behind the head is called the neck of the penis. The front circumference of the neck is enlarged and is called the crown and coronal sulcus, which gives the head of the penis a glans-like appearance. The middle part is the body of the penis, which is cylindrical in shape. It hangs below the anterior part of the pubic symphysis by means of a ligament. The root of the penis is attached to the urogenital diaphragm and under the pubic arch. Can’t understand it? Don’t be in a hurry, you must figure it out. Otherwise, there is a disease can not figure out ah. The penis is mainly composed of two penile corpus cavernosum and one urethral corpus cavernosum, which is surrounded by fascia and skin. Sponges? Good to remember! The corpus cavernosum is a thin cylinder with two ends, one on the left and one on the right, located on the dorsal side of the penis. The two corpus cavernosum are connected in the first 1/3 and become thin at the front end, embedded in a depression on the inner surface of the head of the penis. The posterior end separates on the left and right and attaches to the subpubic and sciatic branches on each side, called the penile pedicle. The penile pedicle is covered by the sciatic cavernous muscle. The corpus cavernosum of the penis is a pair of vascular spongy tissues. The urethral corpus cavernosum is located on the ventral side of the penile corpus cavernosum and runs its full length. The urethral corpus cavernosum is cylindrical in the middle and its anterior end is expanded to form the head of the penis. Ha! The head of the penis is formed by the urethral corpus cavernosum! That’s right, remember that. The posterior end of the urethral corpus cavernosum expands into the urethral bulb, which is located between the feet of the penis on both sides and is fixed under the urogenital diaphragm. The urethral bulb gland has an opening at the top of the back, and it secretes mucus during sexual arousal, which acts as a lubricant. This is the little bit of clear mucus that overflows from the urethra when you masturbate, or when you have sex, also called love juice. Understand? Remember that, too. The corpus cavernosum is the erectile tissue of your penis. It is made up of trabeculae and cavernous sinuses. The trabecular sinuses are interwoven into a network of various fibers, with blood vessels running through them, such as capillaries, spiral arteries, and small veins. The cavity between the trabecular network is the cavernous sinus or cavernous cavity, which is actually the blood sinus or venous sinus. The trabecular spiral artery is tortuous and its end is connected to the cavernous sinus, the wall thickness varies, the thick part of the inner membrane thickens to form a longitudinal bulge, protruding into the lumen, parallel to the long axis of the artery, slightly spiral arrangement, with valve function. It contains smooth muscle, which normally contracts, the lumen is occluded, blood inflow is reduced, and the sinus lumen is narrowed. Scroll down for the best! When you masturbate, caress, and sexually excite your penis to become erect, the spiral artery opens, causing the cavernous sinus to fill with blood and expand, and compressing the veins in the trabeculae, blocking blood return, at which point your penis becomes erect due to the sinus cavity filling with blood! Ha, so that’s it! The more aroused you are, even when you reach a state of sexual arousal, the more open your spiral arteries are and the tighter the veins compressing the trabeculae, the greater the resistance to blood return! At that point, your penis is able to get a strong erection to the perfect state!