The Technology of Erection
by Robert Stalling
When you want to move nearly any part of your
body, you do it using muscles. Whether you are moving your fingers,
toes, arms or legs, muscles do the work. Even when you stick your
tongue out, you do it using muscles:
- You think about moving some part of your body
- The appropriate muscles contract
- That part of the body moves
Muscles let you move your body voluntarily with
precise control.
The penis, on the other hand, is completely different.
There are no muscle contractions involved in making the penis
erect. To become erect, the penis instead uses pressure.
Probably the easiest way to understand how the
penis becomes erect is to think about a balloon. If a balloon
has no air in it, it is limp. As you inflate a limp balloon with
just a little air, it becomes elongated and rigid.
The penis uses a similar mechanism, but instead
of using pressurized air to become rigid, the penis uses pressurized
blood. The penis contains two cigar-shaped structures, called
corpus cavernosa (singular - corpus cavernosum), that it uses
to become erect.
Think of the corpus cavernosa as balloon-like
tubes. Arteries bring blood into these two tubes, and veins carry
blood away from them. The penis can be either limp or erect, depending
on the flow of blood:
1>In a non-erect state, the arteries that
bring blood into the corpus cavernosa are somewhat constricted,
while the veins that drain the blood from the penis are open.
There is no way for pressure to build inside the penis. In this
state, the penis is limp.
2>When a man becomes aroused, the arteries
leading into the penis open up so that pressurized blood can enter
the penis quickly. The veins leaving the penis constrict. Pressurized
blood is trapped in the corpus cavernosa, and this blood causes
the penis to elongate and stiffen. The penis is erect.
If the arteries leading to the penis do not open up properly,
it is difficult or impossible for a man to become erect. This
problem is the leading cause of erectile dysfunction.
To solve an erection problem when the cause is
poor blood flow, you need to open the arteries and this can be
done using Viagra.
About the Author
Robert Stalling - A webmaster of an online pharmacy
Erectile Dysfunction
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