1 Season
47 Episode
Crash Course Anatomy & Physiology - Season 1 Episode 42 Reproductive System, Part 3 - Sex & Fertilization (2015)
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.
- Country : United States of America
- Genre : Documentary
- Studio : YouTube
- Director : Hank Green
- Cast : Hank Green
