Structure of the Penis
In order to understand exactly what Peyronie’s disease is, you need to understand the construction of the penis itself. The penis is actually made up of a shaft and finally the head of the penis also called the glans. There are two divisions that make up the penis and both are responsible for different purposes. First, there is the corpora cavernosa and second there is the corpus spongiosum.
What most people don’t know is that the corpora cavernosa is going to be most important when it comes to having an erection. These two cavities actually fill up with blood in order to create an erection; it is similar to a hydraulic car for example. Basically, the corpora cavernosa are going to be two circular shaped tubes that are made up of some strong tissue that is connective and it is filled with a sort of sponge-like muscle.
As you can see, the corpora cavernosa is a very important part of the penis but there is one more main part of the penis that and that is the corpus spongium. This is the part of the penis that holds the urethra. This runs under the corpora caveronsa and most of the sensitive nerves and blood vessels of the penis run along top.
An Erection: How to Produce One
One of the biggest things that people know the penis for is the erection. What a lot of people simply have no idea is how an erection is produced and what mechanisms are used to produce an erection. Well, pretty much, the corpora cavernosa is going to be the thing that causes the erection which is when the sponge-like tubes will fill up with blood which in turn will expand them causing an erection.
When the chambers in the penis are expanded, they will pull on the tunica albuginea. The tension is going to be what causes the head of the penis to get hard and rigid. This will also cut off the blood’s exit from these tubes, which of course makes the blood trapped in the penis when it is erect.