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Animation: Reproductive System of the Human Male

by Pearson
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>> The reproductive system of the human male consists of testes, various ducts and glands, and the penis. The brain, acting through hormones, controls the process of reproduction. Sperm develop in the testes in coiled tubes called seminiferous tubules. Spermatogenesis produces several hundred million sperm each day. The sperm from each testis mature and become motile in a coiled tube called the epididymis. When a man is sexually aroused, muscular contractions propel the sperm out of the epididymis and into the vas deferens, which loops over the bladder. The vas deferens joins a duct from the seminal vesicle to form the short ejaculatory duct, which with the ejaculatory duct from the other side joins the urethra. The urethra conveys the sperm out through the penis. In addition to the seminal vesicles, the prostate gland and the bulbourethral glands contribute to the seminal fluid that nourishes and protects the sperm and lubricates their path.
>> The reproductive system of the human male consists of testes, various ducts and glands, and the penis. The brain, acting through hormones, controls the process of reproduction. Sperm develop in the testes in coiled tubes called seminiferous tubules. Spermatogenesis produces several hundred million sperm each day. The sperm from each testis mature and become motile in a coiled tube called the epididymis. When a man is sexually aroused, muscular contractions propel the sperm out of the epididymis and into the vas deferens, which loops over the bladder. The vas deferens joins a duct from the seminal vesicle to form the short ejaculatory duct, which with the ejaculatory duct from the other side joins the urethra. The urethra conveys the sperm out through the penis. In addition to the seminal vesicles, the prostate gland and the bulbourethral glands contribute to the seminal fluid that nourishes and protects the sperm and lubricates their path.