Author: Freesciencelessons via YouTube
Go to Source

In this video, we look at thermoregulation in endotherms. First we explore the roles of thermoreceptors and the thermoregulatory centre in the hypothalamus. We then look at how endotherms respond to an increase and decrease in core body temperature, including vasodilation and vasoconstriction. Finally, we look at adaptations of endotherms to hot and cold conditions.

Image credits:

Cat
https://commons.wikimedia.org/wiki/File:Cat_Iran.jpg
درفش کاویانی, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons

Pigeon
https://commons.wikimedia.org/wiki/File:Feral_pigeon_2022_03_18_01.jpg
Alexis Lours, CC BY 4.0 https://creativecommons.org/licenses/by/4.0, via Wikimedia Commons

Human body
https://commons.wikimedia.org/wiki/File:Human_Body_1.jpg
Mikael Häggströmderivative work: Lamilli, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons

Marathon runner
https://commons.wikimedia.org/wiki/File:Lydd_Half_Marathon_%26_20_Miler_2016_FNK_9168_(25509480890).jpg
Funk Dooby from Kent, UK, CC BY-SA 2.0 https://creativecommons.org/licenses/by-sa/2.0, via Wikimedia Commons

Sweating
https://commons.wikimedia.org/wiki/File:Sweating_at_Wilson_Trail_Stage_One_1.jpg
Minghong, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons

Dog panting
https://commons.wikimedia.org/wiki/File:Dog_Panting_on_a_Hot_Day_2013.JPG
David Shankbone, CC BY 3.0 https://creativecommons.org/licenses/by/3.0, via Wikimedia Commons

Kangaroo licking to cool down
https://commons.wikimedia.org/wiki/File:Kangaroo_licking_itself_to_cool.jpg
fir0002 flagstaffotos [at] gmail.com Canon 20D + Canon 400mm f/5.6 L, GFDL 1.2 http://www.gnu.org/licenses/old-licenses/fdl-1.2.html, via Wikimedia Commons

Arm hair
https://commons.wikimedia.org/wiki/File:ArmHair.jpg
Zephyris, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons

Desert fox
https://commons.wikimedia.org/wiki/File:Sleeping_Vulpes_zerda_at_Happy_Hollow,_closeup.jpg
Grendelkhan, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons

Fluffy pigeon
https://commons.wikimedia.org/wiki/File:Fluffy_pigeon_at_Manasota_Key_Beach,_side_view.jpg
Grendelkhan, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons

Cold cat
https://commons.wikimedia.org/wiki/File:Cat_on_a_cold_tin_roof_-_geograph.org.uk_-_434975.jpg
ceridwen / Cat on a cold tin roof

Dog in snow
https://commons.wikimedia.org/wiki/File:Dog_in_snow_jacket.jpg
Magda K from Opole, Poland, CC0, via Wikimedia Commons

Arctic fox
https://commons.wikimedia.org/wiki/File:Arctic_fox_(6375703941).jpg
Emma, CC BY 2.0 https://creativecommons.org/licenses/by/2.0, via Wikimedia Commons

Hedgehog
https://commons.wikimedia.org/wiki/File:Erinaceus_europaeus_LC0119.jpg
I, Jörg Hempel, CC BY-SA 2.0 DE https://creativecommons.org/licenses/by-sa/2.0/de/deed.en, via Wikimedia Commons

Seal
https://commons.wikimedia.org/wiki/File:Arctocephalus_pusillus_2.jpg
© Hans Hillewaert CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons

Go to Source