Join the Amoeba Sisters in their introduction to the circulatory system and follow the pathway of blood as it travels through the heart! This video explains the importance of blood, arteries, and veins, and it also introduces basic heart anatomy including the atria, ventricles, and valves. Video has been dubbed using an artificial voice via https://aloud.area120.google.com to increase accessibility. You can change the audio track language in the Settings menu.

Table of Contents:
00:00 Intro
0:49 Blood
2:35 The Heart, Arteries, Veins, Capillaries, and Valves
4:08 Tracing the Pathway of Blood through the Heart
5:30 What about Coronary Arteries and Veins?
6:00 Quiz Yourself on the Pathway Blood Takes!
6:34 Important Note About Complexity of Cardiac Cycle
7:01 Atrial Septal Defect: an example of a heart defect
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Special thanks to Steven Powell, CRNA for assisting us in proofing this video.

FACTUAL REFERENCES:

Clark, M. A., Douglas, M., & Choi, J. (2018). Biology 2e. Houston, TX: OpenStax. https://openstax.org/books/biology-2e/pages/40-2-components-of-the-blood

Atrial Septal Defect Information from the CDC: https://www.cdc.gov/ncbddd/heartdefects/atrialseptaldefect.html
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FURTHER SUGGESTED READINGS:
This video mentions that hearts can have defects. Learn more from the CDC about heart defects:
https://www.cdc.gov/ncbddd/heartdefects/facts.html

This video doesn't go into the electrical system of the heart, but here is a good source from NIH that does!
https://www.nhlbi.nih.gov/health-topics/how-heart-works

Why do veins appear the color they do under the skin (when human blood is red)? This is a great read from The Conversation (a nonprofit organization that uses fact- and research-based journalism).
https://theconversation.com/ive-always-wondered-why-do-our-veins-look-blue-when-our-blood-is-red-83143

Want do learn more about cardiologists? Here are some resources that you may find useful regarding the role of a cardiologist:
https://www.cardiosmart.org/topics/manage-your-care/what-is-a-cardiologist
https://www.texasheart.org/heart-health/heart-information-center/topics/what-is-a-cardiologist/
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The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky's certification and experience in teaching biology at the high school level. Amoeba Sisters videos only cover concepts that Pinky is certified to teach, and they focus on her specialty: secondary life science. Learn more about our videos here: https://www.amoebasisters.com/our-videos

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MUSIC:
Our intro music designed and performed by Jeremiah Cheshire.

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TRANSLATIONS:
Subtitulado: Tania Kobelkowsky Vidrio. Revisión: A. Romero, V. Álvarez, E. Téllez. Diplomado en traducción, ENALLT-UNAM, 2021

UPDATE: We have videos dubbed in Spanish and Portuguese using an artificial voice via https://aloud.area120.google.com to increase accessibility. Learn more as well as how to contribute subtitles in a different language here https://www.amoebasisters.com/pinkys-ed-tech-favorites/community-contributed-subtitles