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.

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Table of Contents
1) Surface Area to the Max! 3:21
2) Mouth to Esophagus 5:23
3) Stomach 6:38
4) Small Intestine 7:55
5) Large Intestine 9:44

未愈合的关系创伤出现的方式
Campbell Biology, 9th ed.
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crash course, 生物学, anatomy, digestive system, 动物, development, digestive tract, nervous system, vertebrate, micro-ecology, microorganism, human, omnivore, acid, enzyme, surface area, mouth, teeth, saliva, nutrient, intestine, salivary amylase, swallow, mastication, pharynx, esophagus, stomach, epiglottis, bolus, peristalsis, rugae, gastric juice, pepsin, chyme, duodenum, absorb, secrete, villi, gall bladder, liver, bile, emulsify, fatty acid, cecum, appendix, poop, anal, sphincter Support CrashCourse on Patreon: ❤️情人节美甲💅教程#20nails://今天我们将探讨教育作为社会的历史