Reproductive System, Part 3 - Sex & Fertilization: Crash Course Anatomy & Physiology #42

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 fertilization happens, and how different contraceptive methods work.

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Chapters:
Introduction 00:00
Four Phases of Human Sexual Response Cycles 0:53
Fertilization 3:01
Contraceptive Methods 6:59
Review 8:58
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