Author: Freesciencelessons via YouTube
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In this video, we look at control of the heart rate. This includes the roles of the chemoreceptors, baroreceptors and medulla oblongata.

Image credits:

Carotid arteries
https://commons.wikimedia.org/wiki/File:Blausen_0170_CarotidArteries.png
BruceBlaus. When using this image in external sources it can be cited as:Blausen.com staff (2014). "Medical gallery of Blausen Medical 2014". WikiJournal of Medicine 1 (2). DOI:10.15347/wjm/2014.010. ISSN 2002-4436., CC BY 3.0 https://creativecommons.org/licenses/by/3.0, via Wikimedia Commons

Fight or flight response
https://commons.wikimedia.org/wiki/File:Dog_and_cat_showing_fight_or_flight_responses.jpg
Peretz Partensky from San Francisco, USA, CC BY-SA 2.0 https://creativecommons.org/licenses/by-sa/2.0, via Wikimedia Commons

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