The penis, or penis, is the male external genital organ for copulation, ejaculation, and urine excretion. It is the main part of the male reproductive system.
Member structure
The penis consists of three parts: the root, trunk, and head. The main part - the trunk - consists of a spongy and cavernous body. The spongy body is surrounded by a cavernous body. The shaft of the penis ends in a thickening - the head of the penis. This is the most sensitive part of the male organ, as it contains nerve endings that are irritated when touched. In this regard, male sexual arousal occurs.
In the area of the penis there are many veins, including the main one - the dorsal one. She is just responsible for the flow of blood to the penis during arousal, bringing it into a state of erection. In the normal state, the penis does not have strongly pronounced veins, only in a state of excitement.
The head of the penis has thin skin and special glands that produce smegma - a mixture of the secretion of the sebaceous glands, dead epithelium and moisture. In this regard, special attention should be paid to personal hygiene in order to prevent the accumulation of smegma behind the foreskin, especially around the bridle.
The foreskin is a fold of skin that covers the head of the penis, but can move freely. In this case, there should be no pain. Otherwise, you should consult a doctor. The foreskin connects to the head of the penis, forming a bridle. Below, at the base of the penis, is the scrotum, which contains the testicles. They contain seminal fluid.
The penis is not a muscle, although it does have muscles. The skin on a man's penis is capable of stretching, otherwise an erection would simply be impossible.
About size
The size of a man's penis is 7-10 cm in a relaxed state and 12-20 cm in a state of arousal. During arousal, blood flow to the man's penis increases, the sciatic-cavernous muscles tighten, and an erection occurs. After the outflow of venous blood from the penis occurs, it decreases in size.
It is worth saying that during an erection, only the trunk of the penis hardens, but not the head. It remains flexible enough. Otherwise, it could be traumatic for the female body. During an erection, a change in the color of the skin on the head is possible - the pink color becomes more saturated due to the flow of blood. This is normal. Also, a slight deviation of the male member in one direction or another is not a pathology. Although severe curvature is already a cause for concern.
The penis of a healthy man has a slightly darker skin than on the whole body. There are hair follicles at the base of the penis.