Penis erection stages clip


Physiology of Penile Erection and Pathophysiology of Erectile Dysfunction

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Description:Physiology Composite image showing the development of a penile erection with Peyronie's disease An erection occurs when two tubular structures, called the corpora cavernosa , that run the length of the penis, become engorged with venous blood. This may result from any of various physiological stimuli, also known as sexual stimulation and sexual arousal. The corpus spongiosum is a single tubular structure located just below the corpora cavernosa, which contains the urethra , through which urine and semen pass during urination and ejaculation respectively. This may also become slightly engorged with blood, but less so than the corpora cavernosa. The scrotum may, but not always, become tightened during erection.

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Views: 9756 Date: 2018-09-10 Favorited: 22 favorites

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