How does the vascular system play a role in erectile dysfunction?

Blood flow. An erection is a vascular phenomenon, with the penis being engorged with blood on demand, if you will. That being said, vascular risk factors such as diabetes, high blood pressure and heart disease can impair this process, leading to erectile dysfunction.
Blood flow. Erections work when a vigorous arterial supply fills the spongy tissue of the penis. This causes the penis to become erect and also crushes the outflow veins to prevent the erection from immediately going down. If there is not a strong enough inward arterial flow, the penis may not become fully erect, or will not suppress the vein enough to reduce outflow and keep the erection.

Related Questions

How does the vascular system play a role in impotence?

Absolutely. The vasular system is extremely important in regards to all aspects of body function, especially with erectile dysfunction. Many conditions impair blood supply to the penis which leads to impotence. Such problems include diabetes, hypertension , and elevated cholesterol levels. Read more...
Erection=more flow. An erection is having an increase in blood flow that both fills the spongy rods of the penis (making them hard) and blocks the outflow of blood (keeping them hard). Erectile dysfunction (ed) is impotence, or inability to maintain the erection. Things that damage blood flow increases(smoking, hypertension, high lipids, scarring of rods etc) or the nerves that control flow(diabetes etc) are to blame. Read more...