Positive and Negative Feedback Loops

[@lowdvl]

1. Feedback loops help maintain *Homeostasis* 2. *Positive feedback loop* - A system moves away from a target setpoint. Examples: seeing a speed limit sign as a challenge, fruit ripening because of ethylene. 3. *Negative feedback loop* - A system tries to maintain a target setpoint. Examples: trying to maintain the speed limit, temperature regulation, blood glucose levels. 4. *Alteration* - Problem in a feedback loop. Examples: diabetes. 5. *Ectotherm* - Internal temperature stays the same as the external temperature. (snake) 6. *Endotherm* - - Internal temperature is kept constant. (mouse)

[@celeste4087]

thank you!!

[@lowdvl]

@@celeste4087 of course. i wouldn't want anyone else to have to take the time to do it.

[@terrywang3976]

thank you bro.

[@shriniket]

you are a god

[@bobbyzone111]

um ily.

[@elliefrost1062]

i had to watch this for home work lol

[@Epic117450]

Same here.

[@s00dle42]

same

[@rahnull6811]

saaame

[@rudy24286]

Same

[@alphagonist4748]

Im watching this to increase my vast knowledge.

[@angelagillie5229]

The confidence boost you gave me is immaculate. Thank you for this.

[@peonyteeny]

This is the first time I have seen your videos and not only do i have a deeper understanding of positive and negative feedback, but also glucose/insulin and topics related to this. Thank you so much!

[@nerdytennisrunner]

I have tried Khan Academy and compared this video to theirs, and i think being able to see the person who is speaking makes a BIG difference in how much one will retain and how much attention will be given. Keep it up Mr. Andersen! And thank you from all the Ap Bio students in distress!

[@BBC600]

But you have to admit their drawings were quite cute and aesthetically pleasing. 🐇🐿️🦊

[@nataliab1089]

your opening definitions on the difference between negative and positive feedback taught me more in 20 seconds than my teacher had in a week

[@Dinkleplush]

I can't thank you enough for this video, all of my college text books gave different definitions of positive and negative feedback and I never understood any of them, you explained it perfectly! thank you so so much

[@daltonsteinkamp384]

No one going to talk about this guy's insanely good cheek bones and jawline?

[@sebbruh4572]

no

[@ffuwarin]

byebye

[@PraiseIveys]

Mew

[@wailingalen]

I have good cheekbones too 😭😭😭😭

[@ellagantman1577]

For me he's the crash course history by John green but for science class. I have a test tomorrow so here I am :)

[@JasonZhang-JZ]

But Mr Anderson is so much more detailed, and goes into a full-depth explanation on concepts, directed towards AP Biology. Hank just does a fun little overview on how things work overall, only directed towards a class like Biology or Biology Honors and things like that.

[@babiegurlkaitv1680]

Lol me toooooo

[@savagecabbage643]

I have a test in 30 minutes

[@baileyanderson3569]

Me too

[@orangeworm727]

me too rn

[@tommytruong2302]

Wow. I'm a first time biology student in anatomy and physiology and have NO CLUE what feedbacks were when my professor covered it. You've covered so much I'm actually knowing and learning it now, thank you!

[@narles32]

For some reason I just didn't get negative and positive feedback from my text book, this video really helped. So glad I watched this one.

[@FFFRINGE]

My textbook was so confusing about all of this so I am so grateful that I found this video! Thank you!

[@anicolebeaver]

I have been to many of my college instructors to get an explanation and this and they did nothing, but confuse me more. Thank you for finally being able to clear this up for me! :)

[@thhomasmarks]

No doubt.... this really is confusing. \:^" (whistling Peety)

[@zhibekmukhamedinaalas8831]

wow wow I was readiing a lot of materials on positive and negative feedback loops, none of them made me understand the subject, from your video I got it from the first shot thank you for explaining it in a way that human being can understand it.)

[@rebekahormerod5927]

I think I am developing a crush on Mr Anderson. He is helping me get through my Registered Nursing Course. His is the first videos I go to to help me understand what I need to with Biology....Thanks

[@resonatingvoice1]

Your way if explaining complex things in a simple way is really good. Thanks

[@falloutboy636]

I have a biology exam on tuesday and i cant keep my mind focused on re reading my notes but this, this helps

[@camerondavid8089]

I find these most interesting when its not for a class. I love sitting back and listening to your lectures as they are very insightful and informative! Thank you!

[@sarahbenefiel8372]

You helped me pass my test. Thanks man

[@latiasgdcm]

Man, you just got me like 5 classes ahead in bio class, thanks a lot!

[@HallelujChoir]

Thank you so much. have a test tomorrow and this was really very helpful. God bless

[@mskesha82]

Yet another, informative, easy to follow video. Thanks Mr Andersen.

[@estrellapiantini7074]

Always freshens up my brain for A&P exams. You should do a TEAS prep course, because you teach very well!

[@ayanabdisalam9568]

i wish i had you as my prof. THANK YOU SO MUCH.

[@finnk2019]

AP exam tomorrow, thanks for the help Mr. Anderson

[@papawicks9975]

get that bullclap out of here

[@tyishabrown2969]

Thank you so much for this video. I have an exam coming up and I was trying to understand positive and negative feedback but I was having trouble. I have clarity now. Thanks!

[@ANerdGeekDork]

Thank you! I was seriously confused when I looked at what I had to revise for an exam and found positive and negative feedback, but this really helped a lot!

[@JoelWelter]

Great lesson! 4 vids in 1 day? Take a break! I like the new technology you've incorporated recently. Keep 'em coming!

[@morganbeauchamp8409]

This video was incredibly helpful. Thank you for breaking things down in such a relatable way!

[@melissacrabb818]

The pictures are very helpful and I like that fact that you tie it into diabetes and relate it to reality in the world today as far as diet and where diabetes II has a higher incidence.

[@kellylichlyter433]

That was wonderful! Thank you!

[@renemayo4852]

Ugh! I was having trouble differentiating the two. This is exactly what I needed! Thank you so much.

[@aarondjburton]

This video is a tremendous help towards my test tomorrow!! Than you so much!!!

[@muhammadjaffery6432]

On god my teacher emailed this to us to write notes for homework. You earned my sub

[@ae-wk1ex]

watching this for my bio final tomorrow 😔✊🏼

[@juliexx3408]

Good luck

[@trinncityy7167]

omg do you remember how it went ?

[@ae-wk1ex]

@@trinncityy7167 it went pretty well haha

[@EclipticalD]

Thanks, really nice explanation of feedback loops. Anyone interested in understanding systems of any kind would benefit from this video.

[@cherry.25]

I wish you were my biology teacher! With you biology would be so fun

[@planktonfun1]

he's controlling the matrix!

[@yanyan3734]

Paulo Castro

[@planktonfun1]

YanYan YanYan

[@juliexx3408]

Do u still want him ur teacher 😂

[@hiyorioh]

Julie Xx no

[@rosieblah]

You are awesome teacher Mr Andersen

[@TripleTThomas]

Actually so helpful and easy to understand. I'm going to check out your other videos. I sure hope you are still making them!

[@roselambie]

THANK YOU you literally just saved my entire exam for tomorrow!!!1 :) :) :)

[@RemiliaVampire]

4:24 our internal temperature is 98C!? 🤒 lol great video

[@debadritadas8202]

I really can't thank you enough. You explain brilliantly.

[@melissacrabb818]

You are a great teacher! Thanks, this really helped me understand. I'm all clear now!

[@MegaMissfitz]

I hope my sarky little ray of sunshine is feeling a tad brighter this morning !!!

[@shaylapatterson4951]

Totally helped!! The same examples were used by my teacher and you still did it better. Thanks!!

[@alygirl011]

Thank you so much! The images and almost interactive feeling have really help me with understanding feedback loops!

[@paralysekid]

Your video made me understand this topic really easily in very short time, and I'm not even from the biology field. I'm studying Human-Computer-Interaction and it's funny that a bilogy video did a better job of explaining this concept to me than the Articles written by HCI experts.

[@Mu5ik4Life]

That over ripe apple communication hormone thing is so cool!!

[@jonathanbailie]

So... it's a POSITIVE thing to speed up when you see those signs, gotcha 👍 😆 Great vid, joking aside 😁

[@snipertana]

this dude is bad ass. totally getting me through my course!

[@aniruddhmishra5541]

I found this video extremely helpful. Thank you sir.

[@indianbarbie]

What a helpful video,. I love your style of formatting for this video to make it easier to teach and it helps when you write on the diagrams :) Thanks so much for your help!

[@theafricanroyal]

Thank you so much for this video. This will help me with my upcoming exam!

[@fazzywithacamera]

You sir, are a teaching genius.

[@leannejackson9026]

Thank You, Was just on my level. Nice and simple but still informative. Learnt alot. Thank You

[@brittanyconsidine6372]

Test tomorrow and I just realized I didnt know a negative and feedback this helped alot

[@JayLikesLasers]

4:20 Erratum 98.6 degrees farenheit. I think insulin was first cultivated using pig pancreas. Keep making these videos, very helpful.

[@REDLOWESYCHICKEN]

Was away in class so here i am this helped thanks

[@tiffanyhansen6605]

Very good explanation - clear and interesting. Thank you.

[@brittanyfarah9599]

all of his videos are amazing. so helpful

[@kaankorkmaz4012]

Türkçesini yapmışlar la sizin videonun. Ordan izledim çok iyi anlatmissin hocaaa

[@idolgaming2639]

Thank you very much, this has been really useful as a recap tool for my A&P exam.

[@jessicabarnes7259]

Thank you for this! I always had a hard time learning this! Crystal clear!

[@ptakako21]

Great video! Helped my understand positive and negative feedback loops! Thanks!

[@yumenoritsu]

Thanks, our lecturer used this vid in class today :D

[@Shiralak]

Thanks man , that was really easy to understand , it has helped me a lot .

[@xclusiv3_kitchen846]

best teacher ever

[@darkshojogirl]

Holy mother I'm freaking out... Test in 2 days....!!!!! But this helped loads, so thanks... to be honest I could go on blaming my (terrible) biology teacher for my lack of having learnt anything, but that'll get me nowhere.... better to revise right? Damn... I wish I'd had this mindset 2 months ago.....

[@jes4funn]

Super video! Thanks a great refresher for my A&P class

[@mariceladelarosa9811]

Well done! This was a very helpful video. Thank you for the clarification on feedback loops.

[@saturawinter]

i'm going to have test about this tomorrow. totally thanks

[@churchboy19]

Thank u soooo much I'm in Physiology right now and its tough but u break it down well

[@staceclaudbelle]

Great video, helped heaps. Thanks so much.

[@97Fuzzy97]

AMAZING!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! i espicially liked the bit where you mentioned sugar AND CORN SYRUP. high fuctose corn syrup, or inverted corn syrup, is ten times sweeter than sugar and ten times worse.

[@BubblesAndCookiesFTW]

This helped heaps with understanding glucose and glucagon, thankyou :)

[@kaiburridge7692]

I appreciate this video, but I wish you would have talked about stimulus and receptors and used examples for that.

[@TurnUpMyHeadphones]

He explained this so much better than my teacher

[@jmay676]

Your videos are really helpful. Thank You

[@pamelameadows2906]

Wow you really explain this so I can understand it. Thank you this is a huge help.

[@ma7net9cAllah]

Hello. I'm having a hard time comprehending the pos. neg. feedback loops. Can u explain why it seems that the definitions for pos. & neg. fbl seems to be in reverse, if I make sense.

[@_AFKitchen]

THANK YOU!! I have an A&P exam in a few hours!

[@trippytrigga3146]

+brunettebosss same haha

[@seltzersoda]

high school got me fucked up

[@Dienkie3003]

Very very good video!

[@piotr803]

You have made it super clear! Thanks :)

[@vadimmartynyuk]

wqs searching for drum samples and loops on KZbin. how did I end up here...

[@samanthagonah8243]

Brilliant video 👍🏻

[@Danielle_mck23]

brilliant explanation, especially the insulin and glucagon feedback system. thank you ;o)

[@its_lexi_ofccc]

This realy helped me understand feedbacks. Thankyou!

[@faitharco5721]

1:03 RIP headphone users

[@swastikraghuvanshi8575]

exactly !

[@sanjayraju988]

Danielle Faith OMG! You just saved my life. (Unplugs Headphones).

[@torigleason8207]

I can't hear anymore!

[@slightlymad2481]

Barney Watching For Santa

[@slightlymad2481]

Barney watching for Santa

[@tylerarndt8218]

great video! i hope i find some more to help me with anatomy and physiology!

[@snugglepott98]

Love the explanation thanks you heaps!

[@westonblakestrachan]

so basically homeostasis uses negative feedback to make demands meet exact or close to their destination, and positive feedback is when something is moving away from the required destination. and sometime during homeostasis, alterations happen which cause mutations and defects. right?

[@intertain595]

hi there your explained really help me to understand- but I have question is that how a negative feedback cycle control homeostasis,... is it the five parts of the feedback cycle?

[@yamenwm8097]

10;30 the glucagon will breck down not produced by pancereas right ?

[@czekinahellamar9479]

Is the sensation of thirst associated with a negative or positive feedback mechanism? Explain.

[@ChristinaKresge]

U r amazing. Thanks for this great video!! Keep them coming!

[@AwsmPntsAlchmst]

Very well explained! I've been googling for hours what feedback is and no one can explain it :S

[@ActiveStorage]

so is it save to say that any resonance phenomena is a negative vs positive feedback loops working together?

[@Roxificationable]

Thank you so much for this video!!!

[@Emmy72943]

Awesome! Test in 2 days, this helped a lot :)