Thermoregulation

Paul Andersen explains how organisms are able to regulate their internal body temperature (or not). He starts with a brief description conduction, convection, radiation and metabolism. He contrasts ectotherms and endotherms. He also explains how endotherms use negative feedback loops to regulate internal body temperature.

Intro Music Atribution
Artist: CosmicD
Creative Commons Atribution License

[JoneThePwn]

Loved it, thank you. Taking majors level biology 1 in college and finding little videos on the web makes it so much easier for me to learn than just reading the textbook/PDFs. Subscribed.

[EmprorShotz]

My biology teacher gives us assignments to watch your videos and do notes on them. Your videos are very easy to follow and under stand.

[andrewlloyd]

Superb Video session. Currently doing a Degree in Environmental science and i could not get my head round this. Perfect explanation thank you.

[keyairahughes]

I am so glad I found these You're very helpful!!!! My A&P Professor is a killer and so is his class.... This was a HUGE HELP!!!!

[evasweet-anderson]

This is so helpful for my biology report, Thank you!

[jadenio]

Yeah watching your videos is a regular homework assignment for us. (We watch about 2 of your videos and take notes on them each week as part of our homework)

[thedicebear]

that was really good, simple and to the point

[LisleArch]

Thank you so much for these videos! saving my AP bio grade and exam dreams!

[baqerhablan]

Thank you .. I really enjoy your lectures not to mention that they are very useful in my study :)

[nahshontan]

00:06 Organisms regulate internal temperature
00:47 Heat can be transferred through conduction and radiation.
01:23 Heat transfer occurs through convection, air heating up and rising.
01:55 Ways to get warm: Sun radiation, air movement, touching warm objects.
02:36 Cold-blooded animals regulate body temperature using external sources.
03:13 Endotherms maintain constant internal temperature but need to eat constantly.
03:49 Hypothalamus regulates body temperature.
04:21 When temperature goes too low, body reacts by getting goosebumps and vasoconstricting to raise temperature back to set point.

[caitlintye]

i think you just saved my future :3 your videos are AMAZING! thankyou

[princesssrah]

I just covered this in uni, I was a bit unsure but you cleared up my hesitations. Thanks Paul!

[ycquanx]

Thank you Paul, I love your video's, the diagrams are really helpful and you go into great detail :) 

[vasudevabhat]

Thanks.
Kindly place one end of a metal rod on the flame. On the other end we feel the heat. That could better explain conduction.
Thanks for your nice presentations.

[vivian]

Amazing video, great effort! However, I feel that there needs to be more explanation for conduction, convection and radiation.

[DrMilinda]

During vasodilation do we lose heat only by radiation or by conduction and convection as well?

[ReparentingDiary]

Thank you for making this video! One question though, as far as I know, the nervous and endocrine systems acting together to maintain homeostasis. But is it true that homeostasis always involves the interaction between these two systems? It seems to me that regulating blood CO2 level and maintaining a normal body temperature do not require hormones... Thank you!

[e.]

Thanks for the video. I just hace one short question left: we learnd the words "poikilotherm and homeotherm" in the same context. Is the meaning the same?

[giovannifrrri]

Do all objects above 0 kelvin emit infrared radiation??

[selah]

Help! I think I don't have a hypothalamus. I'm hot and cold at the same time. Mostly cold all the time. ugh.