The Center for Medicare Advocacy produced this packet to help you understand Medicare coverage and how to file an appeal if appropriate. Medicare is the national health insurance program to which many people with disabilities and older people are entitled under the Social Security Act.
Sperm release pathway. Overview. The key male reproductive organs include the testes, epididymis, urethra, vas deferens, prostate gland, seminal vesicle, and penis. The testes are composed of coiled structures called seminiferous tubules, which are the sites of sperm production.
RECOMMENDED LESSONS: The male reproductive system. The male reproductive system includes the testes (say test-eez), prostate glands, sperm ducts, urethra and penis (P). Sperm duct. During mating, sperm cells released pass through the sperm ducts. Testes. There are two testes (one of them is called a testis).he male reproductive system includes the testes (say test-eez), prostate glands, sperm ducts, urethra and penis (P). Sperm duct. During mating, sperm cells released pass through the sperm ducts.