ANATOMY OF THE PENIS

The male penis is comprised primarily of two cylinders of sponge-like vascular tissue that fills with blood to create an erection. Blood is pumped into the penis under great pressure and a series of valves keeps it in the penis to maintain the erection. How much expansion in the penis this causes differs from man to man.  Somebody might have a 3" soft penis that expands to 6", while somebody else might have a 5" penis that expands to 6". There's no telling how big a soft penis will get just by looking at it.

A third cylinder is the urethra, a tube that carries the urine and the ejaculate. The knobby head of the penis is called the Glans. Blood flows to the penis by two very small arteries that come from the Aorta. These arteries are the same size as the arteries to your finger. The main problem that causes impotence is that the blood vessels become blocked or damaged and the blood can not get to the penis. The other major problem is leakage of blood from the penis into the veins around the penis called a venous leak. This is very common, similar to a hole in a tire. The larger the hole the more air that needs to be pumped into the tire to keep it hard!

The two tubes on the sides (corpora cavernosa and singular corpus) are covered with fascia which attaches to suspensory ligaments.  These are attached to the abdomen or the pubic bone. When you feel a little bumpiness under the skin about halfway down your penis shaft, you're probably feeling the ligaments where they attach.  Alongside the dorsal vein on the top of the penis runs the dorsal nerve. The main problem with loop attachment devices (such as Ironman, JES Extender, Penis-Stretcher, Max Xtender etc) is that they tend to put the most pressure on the top of the penis, where there's the most chance of creating problems with the vein or nerves.