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Inner Penis
To the left is a diagram of the inner penis.
You can see how the arteries close up to prevent
blood flow into the penis cylinders which create
the erection. These blocked arteries are what is
known as erectile dysfunction. |
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Erect Penis
During an erection, the arteries in the
penis widen to allow more blood flow in. The blood
fills the cylinders inside the penis called the
Corpora Cavernosa and the Corpus
Spongisum. Blood must be able to reach and remain
in the erectile tissues to maintain erection quality. |
The
penis contains two chambers called the corpora cavernosa,
which run the length of the organ . A spongy tissue
fills the chambers. The corpora cavernosa are surrounded
by a membrane, called the tunica albuginea. The spongy
tissue contains smooth muscles, fibrous tissues, spaces,
veins, and arteries. The urethra, which is the channel
for urine and ejaculate, runs along the underside of
the corpora cavernosa and is surrounded by the corpus
spongiosum.
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