Few sensations in life are better than being sexually stimulated and having our penis jump to life at a fully erect status ready to probe, thrust, and penetrate whatever it is that is making us excited. But how does this all happen?
When you get an erection – your two cylinders of your corpus cavernosa fill with blood. This blood is pumped in under great pressure making you feel hard as a rock.
In order to stay that way, a series of valves close down to lock in the blood. The blood flows into the penis from two arteries that come from the aorta.
During sexual stimulation the arteries supplying the penis with blood dilate and large amounts of blood rush into the erectile tissue. The blood is trapped because the vessels draining the penis become compressed. The penis stays this way until ejaculation or until the male is no longer stimulated. [click to continue…]
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