Light micrograph of penile erectile tissue. The arteries in the erectile tissue dilate during sexual arousal,enabling the corpora cavernosa to fill with blood,causing the penis to swell and lengthen | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Biophoto Associates |
Taille de l’image : | 4229 px × 2791 px |
Model Release : | Non requis |
Restrictions : |
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