Uploaded July 2024 | Updated September 2026, 1 hour ago

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In this video, we start the topic on homeostasis. We look at the definition of homeostasis and why this is an example of a dynamic equilibrium. We then explore why it is important that we maintain a constant pH and water potential of the tissue fluid as well as a constant core body temperature.

Image Credits:

Amoeba
commons.wikimedia.org/wiki/File:Amoeba_proteus_with_many_pseudopodia.jpg
SmallRex, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons

Human

commons.wikimedia.org/wiki/File:Anterior_view_of_human_female_and_male,_without_labels.jpg

Taken at City Studios in Stockholm (www.stockholmsfotografen.se), September 29, 2011, with assistance from KYO (The organisation of life models) in Stockholm. Both models have consented to the licence of the image, and its usage in Wikipedia. Images uploaded by Mikael Häggström., CC0, via Wikimedia Commons

Triose phosphate isomerase
commons.wikimedia.org/wiki/File:Triosephosphate_isomerase.jpg
Yikrazuul, Public domain, via Wikimedia Commons

Camel
commons.wikimedia.org/wiki/File:07._Camel_Profile,_near_Silverton,_NSW,_07.07.2007.jpg
Jjron, CC BY-SA 3.0 creativecommons.org/licenses/by-sa/3.0/, via Wikimedia Commons

Emperor penguins
commons.wikimedia.org/wiki/File:Aptenodytes_forsteri_-Snow_Hill_Island,_Antarctica_-adults_and_juvenile-8.jpg
Ian Duffy from UK, CC BY 2.0 creativecommons.org/licenses/by/2.0, via Wikimedia Commons

Blood
commons.wikimedia.org/wiki/File:Humanrbc1000x.jpg
John Alan Elson, CC BY-SA 3.0 creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons