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Erection - Wikipedia

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7 Dec E. ▻ Erect human penis (4 C, F) H. ▻ Human penis in art in various degrees of rigidity (4 C, 5 F) Videos of penile erection (14 F).

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Description:Physiology Composite image showing the development of a penile erection 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.

Views: 8766 Date: 2018-06-24 Favorited: 68 favorites

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