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Two illustrations of the penis: the top one showing the arteries of the penis and the bottom one showing the veins of the penis

View full-sized image Two illustrations of the penis: the top one showing the arteries of the penis and the bottom one showing the veins of the penis.
Download Media Please credit each image as: National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health.

Description

Two black and white illustrations of the penis: the top one showing the arteries of the penis and the bottom one showing the veins of the penis.

Alternate Text

Two illustrations of the penis: the top one showing the arteries of the penis and the bottom one showing the veins of the penis.

Caption

Arteries (top) and veins (bottom) penetrate the long, filled cavities running the length of the penis—the corpora cavernosa and the corpus spongiosum. Erection occurs when relaxed muscles allow the corpora cavernosa to fill with excess blood fed by the ar

Diseases or Conditions

File Size

577 KB | 1256 x 1284

File Type

JPG

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