Male sexual arousal, computer artwork

Male sexual arousal, computer artwork

P640/0056 Rights Managed

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Credit: GUNILLA ELAM/SCIENCE PHOTO LIBRARY

Caption: Male sexual arousal. Computer artwork showing a flaccid (unaroused) penis (top) and an erect (aroused) penis (bottom). At centre left is a cross-section through the penis. In the cross- section veins are blue, arteries are red and the urethra is yellow. The two large structures surrounding the arteries at centre right and left are the corpora cavernosa. The corpus spongiosum surrounds the urethra. During arousal chemical messages are sent to the penis that relax its smooth muscle and dilates the arteries. The corpora cavernosa fill with blood, causing the penis to swell and lengthen. As they fill the corpora cavernosa press against the veins, preventing blood from leaving the penis and maintaining an erection.

Release details: Model release not required. Property release not required.

Keywords: anatomical, anatomy, arousal, aroused, arteries, artery, artwork, biological, biology, blood vessel, cavities, cavity, computer artwork, corpora cavernosa, corpus spongiosum, erect, erection, flaccid, human body, illustration, male, penile, penis, urethra, vein, veins

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