The Digestive System: CrashCourse Biology #28
Hank takes us through the bowels of the human digestive system and explains why it's all about surface area. Crash Course Biology is now available on DVD!
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Oh hi! I hope you don't mind that I'm eating. This is actually just my first course. For my birthday, the writers wrote me a script where I just get to eat! The whole time! And I can't think of a better way to demonstrate the workings of the digestive system, the series of hollow organs that we use to break down and process the nutrients and energy we need to function. Though...wait a second, if I remember correctly digestion is actually pretty freaking disgusting... so maybe I shouldn't be eating right now. Oh whatever... Waiter! The digestive system is so fundamental that it's basically step number one in the guide: How to Make an Animal. You probably remember that during the embryonic development of most animals, the digestive tract is the very first thing that f...
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Oh hi! I hope you don't mind that I'm eating. This is actually just my first course. For my birthday, the writers wrote me a script where I just get to eat! The whole time! And I can't think of a better way to demonstrate the workings of the digestive system, the series of hollow organs that we use to break down and process the nutrients and energy we need to function. Though...wait a second, if I remember correctly digestion is actually pretty freaking disgusting... so maybe I shouldn't be eating right now. Oh whatever... Waiter! The digestive system is so fundamental that it's basically step number one in the guide: How to Make an Animal. You probably remember that during the embryonic development of most animals, the digestive tract is the very first thing that f...
