The penis is the male sex organ, reaching its full size during puberty. In addition to its xxxual function, the penis acts as a conduit for urine to leave the body.
The penis is made of several parts:
• Glans (head) of the penis: In uncircumcised men, the glans is covered with pink, moist tissue called mucosa. Covering the glans is the foreskin (prepuce). In circumcised men, the foreskin is surgically removed and the mucous on the glans transforms into dry skin.
• Corpus cavernous: Two columns of tissue running along the sides of the penis. Blood fills this tissue to cause an erection.
• Corpus spongiosum: A column of sponge-like tissue running along the front of the penis and ending at the glans penis; it fills with blood during an erection, keeping the urethra — which runs through it — open.
• The urethra runs through the corpus spongiosum, conducting urine out of the body.
Pen*s Fact Of The Day
Penises are born ready. It is common for babies to exit the womb with an erection. Even before the moment of birth, ultrasound scans sometimes show a fetus with a fully formed erection.
According to a study from 1991, fetal erections occur most commonly during random eye movement (REM) sleep. And, they can happen a number of times each hour. No one is quite sure why, but it might just be our body’s way of testing things out and keeping them running correctly.
A lot of men might take solace in this fact: our penises are longer than they look. In fact, around half of its entire length is housed inside of our bodies.
Let’s lay this one to rest, shall we? According to a study published in the journal BJU International, there is no correlation between shoe size and penis length.
Although an older study — which was published in 1993 — did find that penile length was related to both height and foot length, it was a weak relationship, and the authors concluded, “Height and foot size would not serve as practical estimators of penis length.”
Also, the International Journal of Impotence Research published an Iranian study looking at other correlations. They concluded that “penile dimensions are significantly correlated with age, height, and index finger length,” but not foot size.
Most men have 3–5 erections every single night — mostly during REM sleep, as with the in utero boys. An erection results from changes in blood flow in the penis. When a man becomes xxxually aroused, nerves cause penis blood vessels to expand. More blood flows in and less flows out of the penis, hardening the tissue in the corpus cavernosum.
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