The penis is as complex as any other part of the human body, despite a deceivingly simple appearance. Moreover, since the two functions of the penis are well-known to men and women alike, there is a tendency to think that everybody knows everything worth knowing about it. However, there are always a few questions left unanswered or some obscure bit of information that nobody bothers to remember and which may become interesting in a certain context. So heres a general description of the penis whose aim is to provide a comprehensive presentation of this organ.
Basically, the human penis is made up of two parts: the shaft and the glans (also known as the head). The shaft is not a muscle as some have suggested. It is made of three columns of tissue, one of which continues forward to form the glans. The three columns are called Corpus Spongiosus, which forms the underside of the penis and the glans, and Corpora Cavernosa, which are two sections of tissue located next to each other on the upper side of the penis.
The shaft is covered in skin, while the glans supports the loosely attached fold of skin known as the foreskin. The foreskin is attached to the underside of...