Uploaded August 2024 | Updated September 2026, 11 hours ago
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
commons.wikimedia.org/wiki/File:Cat_Iran.jpg
درفش کاویانی, CC BY-SA 3.0 creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons
Pigeon
commons.wikimedia.org/wiki/File:Feral_pigeon_2022_03_18_01.jpg
Alexis Lours, CC BY 4.0 creativecommons.org/licenses/by/4.0, via Wikimedia Commons
Human body
commons.wikimedia.org/wiki/File:Human_Body_1.jpg
Mikael Häggströmderivative work: Lamilli, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons
Marathon runner
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 creativecommons.org/licenses/by-sa/2.0, via Wikimedia Commons
Sweating
commons.wikimedia.org/wiki/File:Sweating_at_Wilson_Trail_Stage_One_1.jpg
Minghong, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons
Dog panting
commons.wikimedia.org/wiki/File:Dog_Panting_on_a_Hot_Day_2013.JPG
David Shankbone, CC BY 3.0 creativecommons.org/licenses/by/3.0, via Wikimedia Commons
Kangaroo licking to cool down
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 gnu.org/licenses/old-licenses/fdl-1.2.html, via Wikimedia Commons
Arm hair
commons.wikimedia.org/wiki/File:ArmHair.jpg
Zephyris, CC BY-SA 3.0 creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons
Desert fox
commons.wikimedia.org/wiki/File:Sleeping_Vulpes_zerda_at_Happy_Hollow,_closeup.jpg
Grendelkhan, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons
Fluffy pigeon
commons.wikimedia.org/wiki/File:Fluffy_pigeon_at_Manasota_Key_Beach,_side_view.jpg
Grendelkhan, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons
Cold cat
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
commons.wikimedia.org/wiki/File:Dog_in_snow_jacket.jpg
Magda K from Opole, Poland, CC0, via Wikimedia Commons
Arctic fox
commons.wikimedia.org/wiki/File:Arctic_fox_(6375703941).jpg
Emma, CC BY 2.0 creativecommons.org/licenses/by/2.0, via Wikimedia Commons
Hedgehog
commons.wikimedia.org/wiki/File:Erinaceus_europaeus_LC0119.jpg
I, Jörg Hempel, CC BY-SA 2.0 DE creativecommons.org/licenses/by-sa/2.0/de/deed.en, via Wikimedia Commons
Seal
commons.wikimedia.org/wiki/File:Arctocephalus_pusillus_2.jpg
© Hans Hillewaert CC BY-SA 3.0 creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons
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
commons.wikimedia.org/wiki/File:Cat_Iran.jpg
درفش کاویانی, CC BY-SA 3.0 creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons
Pigeon
commons.wikimedia.org/wiki/File:Feral_pigeon_2022_03_18_01.jpg
Alexis Lours, CC BY 4.0 creativecommons.org/licenses/by/4.0, via Wikimedia Commons
Human body
commons.wikimedia.org/wiki/File:Human_Body_1.jpg
Mikael Häggströmderivative work: Lamilli, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons
Marathon runner
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 creativecommons.org/licenses/by-sa/2.0, via Wikimedia Commons
Sweating
commons.wikimedia.org/wiki/File:Sweating_at_Wilson_Trail_Stage_One_1.jpg
Minghong, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons
Dog panting
commons.wikimedia.org/wiki/File:Dog_Panting_on_a_Hot_Day_2013.JPG
David Shankbone, CC BY 3.0 creativecommons.org/licenses/by/3.0, via Wikimedia Commons
Kangaroo licking to cool down
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 gnu.org/licenses/old-licenses/fdl-1.2.html, via Wikimedia Commons
Arm hair
commons.wikimedia.org/wiki/File:ArmHair.jpg
Zephyris, CC BY-SA 3.0 creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons
Desert fox
commons.wikimedia.org/wiki/File:Sleeping_Vulpes_zerda_at_Happy_Hollow,_closeup.jpg
Grendelkhan, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons
Fluffy pigeon
commons.wikimedia.org/wiki/File:Fluffy_pigeon_at_Manasota_Key_Beach,_side_view.jpg
Grendelkhan, CC BY-SA 4.0 creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons
Cold cat
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
commons.wikimedia.org/wiki/File:Dog_in_snow_jacket.jpg
Magda K from Opole, Poland, CC0, via Wikimedia Commons
Arctic fox
commons.wikimedia.org/wiki/File:Arctic_fox_(6375703941).jpg
Emma, CC BY 2.0 creativecommons.org/licenses/by/2.0, via Wikimedia Commons
Hedgehog
commons.wikimedia.org/wiki/File:Erinaceus_europaeus_LC0119.jpg
I, Jörg Hempel, CC BY-SA 2.0 DE creativecommons.org/licenses/by-sa/2.0/de/deed.en, via Wikimedia Commons
Seal
commons.wikimedia.org/wiki/File:Arctocephalus_pusillus_2.jpg
© Hans Hillewaert CC BY-SA 3.0 creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons
