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Web0:00 / 1:35. From an accredited hospital. Learn how experts define health sources in a journal of the National Academy of Medicine. 2. How an erection works. 20,580 views. Web25 de ago. de 2024 · In this video, you’ll learn that: The penis is made up of three tubes: Two erectile bodies, which are tubes of tissue that fill with blood to make the penis erect. The urethra, which is the tube that you use to urinate. To get an erection, two main arteries called the cavernosal arteries fill the tissue in the erectile bodies with blood. chit chat png
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