Digestive System

Join the Amoeba Sisters for a brief tour through the human digestive system! This video will address major structures and functions including the esophagus, stomach, small intestine, and large intestine. This video also mentions chemical and mechanical digestion as well as some digestive vocabulary.

Table of Contents:
00:00 Intro
1:30 Ingestion, Digestion, Absorption, Elimination
2:09 Mouth
2:57 Esophagus
3:27 Stomach
4:33 Small Intestine
6:03 Large Intestine (Colon)
6:29 Elimination
6:53 Accessory Organs in Digestion
7:43 Disorders in Digestion
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REFERENCES on HUMAN DIGESTIVE SYSTEM:

Zedalis, Julianne, and John Eggebrecht. “25.3 Digestive System Processes - Biology for AP® Courses | OpenStax.” Openstax.org, 18 Mar. 2018, openstax.org/books/biology-ap-courses/pages/25-3-digestive-system-processes.

Urry, Lisa A, et al. Campbell Biology. 11th ed., New York, Ny, Pearson Education, Inc, 2017.

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FURTHER READING SUGGESTIONS

On Platypus Digestive System:

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5840709/

https://royalsocietypublishing.org/doi/10.1098/rspb.2013.2669

https://www.nationalgeographic.com/science/phenomena/2013/12/03/how-the-platypus-and-a-quarter-of-fishes-lost-their-stomachs/

https://www.smithsonianmag.com/smart-news/many-animals-including-the-platypus-lost-their-stomachs-180948103/

On Venomous Spur in the Platypus:
https://pubmed.ncbi.nlm.nih.gov/22899769/

We mention specialized cells can develop a mucus layer - and that they divide frequently - which can be protective for the stomach lining. However, there's more! Did you know many enzymes (like pepsin) are secreted in an inactive form and don't activate until reaching a different location? Learn more below!
https://www.scientificamerican.com/article/why-dont-our-digestive-ac/

Learn about Hormones Involved in Human Digestion:
https://openstax.org/books/biology-2e/pages/34-4-digestive-system-regulation

Learn about Disorders of Human Digestive System:
https://www.niddk.nih.gov/health-information/digestive-diseases
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Видео Digestive System канала Amoeba Sisters