Despite its simple appearance, the penis is one of the most complex parts of the human body. Most people believe that because they understand the two main functions of the penis, they know everything about its structure too. The fact is however, that there are actually plenty of things that very few people know about the penis – with this in mind, we are providing a comprehensive general guide to the penis.
In essence, there are two parts making up the human penis: The shaft and the glans, which is also known as the head.
The shaft is not a muscle, it is actually made up of three columns of tissue that form its shape. The two that make up the top of the penis are called the corpora cavernosa, and the one underneath them is known as the corpus spongiosus. During an erection, the blood vessels supplying the penis dilate and allow more blood to reach the penis. The three corpora are filled up with blood, and stiffer tissues that surround the corpus cavernosa constrict the veins that would normally allow blood to drain from the penis. This combination of actions and procedures cause the penis to become stiff. Unlike many other mammals that have a bone in the penis to support the erection, in humans, it is just these three areas of tissue and the pressure of the blood within them that keep the penis stiff.
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The shaft of the penis is covered in skin, which is attached to the glans, which in turn is normally covered by the foreskin. The area where the foreskin is rooted is called the frenum.
The final part of the penis is the urethra. This canal through the tissue serves as the passage for urine and also for sperm, which comes from the testicles.
Men have their reproductive organs from birth, although the actual development of their main functions only takes place at puberty between the ages of 10 and 14. At this time, the pituitary gland secretes hormones that make the body begin to producer testosterone. This hormone actually causes most physical traits of maleness to take place in the body.
Amongst the traits that are caused by testosterone, the most obvious are the physical ones. Bigger bones, more muscle mass than women and a deeper voice are primary characteristics of men. The hormone is also responsible for the growth of pubic hair, and the increased size of the penis and testicles.
In most cases, the penis ceases to grow at the end of puberty – around the age of 18, although in some cases there are factors in the environment that can cause some men to experience penis growth beyond the age of 18.
Conventional wisdom suggests that penis size is proportional to the other areas of the body such as the hands and feet or nose. In fact there is not such a link, although the growth of all areas of the body as a fetus are controlled by the same hormones, the growth of the penis during puberty is simply controlled by testosterone, which has no effect on other parts of the body.
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The fact is that some men are just born with bigger penises than others. The actual reasons for this are a mystery to science, although there is no actual correlation between body size and penis length. In many studies that have been conducted on bats, the result has been that development of the sexual organs and the brain needs large quantities of energy. There is a point in the development of the embryo where the body makes a decision whether it needs a larger penis or a bigger brain. The actual reasons that trigger this decision are unknown to science.
Of course, as with any other area of the body, there are a number of different exercises that you can do to improve the structure and health of the organ. The PenisHealth system is a range of exercises that are developed to force the columns of tissue that make up the penis to expand in both length and girth. Pressure is exerted on the shaft, and this helps the cells to multiply. The ultimate aim of the PenisHealth program is to get the Corpora Cavernosa to increase in capacity and hold more blood. This will increase the size of the erect penis. Careful sustained exercising of your penis is, despite what some skeptics think, a safe and effective way of increasing the size of the penis in both girth and length.
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