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.
A&P poster: http://store.dftba.com/products/crashcourse-anatomy-and-physiology-poster
Table of Contents
Four Phases of the Human Sexual Response 1:34
Creating a Zygote 3:21
Methods of Birth Control 7:15
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Tagged under: John Green,Hank Green,vlogbrothers,Crash Course,crashcourse,Fertilisation (Literature Subject),Reproductive System (Literature Subject),Reproduction (Quotation Subject),Sexual Intercourse (Literature Subject),education,science,learning
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