The Technology of Erection
The Technology of Erection
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: 1>You think about moving some part
of your body 2>The appropriate muscles contract 3>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