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Penis Penis is one of the most important organs, which have a complex structure, in human body.
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Penis is an external male genital, which serves as the organ for intercourse, the pass of ejaculate (sperm), and also the derive agent for urine excretion. One can find a root (or basement), the body (or stem) and the head of penis. Stem is built with the help of two cavernous bodies, which contain great number of lacunas (cavities) that are easily flood with blood.
Penis cavernous bodies are placed along the edges, sponge is below, in the sulcus between them together with urethra. The sponge body at the end of penis is closed with a cone like bulge the head of penis.
The edge of the penis head covers cavernous bodies, grows with them together, and by this a kind of thickening (crown) is grown along the penis edges.
Outside this crown penis coronary sulcus is placed.
The penis head is covered with a tender skin with big number of glands, which excrete smegma. The head, as well as the body of penis, contains many lacunas, which are filled with blood at sexual excitement.
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