Reproductive System, Part 3 - Sex & Fertilization - S1.E42
After weeks of discussion of human reproduction, today we arrive at the main event: THE SEX. Hank explains the four phases of the human sexual response, how a sperm finds and fertilizes an egg, creating a zygote, and how different types of contraception work to prevent that from happening.
Reproductive System, Part 3 - Sex & Fertilization - S1.E42
November 16, 2015
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