Great Glands - Your Endocrine System: CrashCourse Biology #33

[@thenightreaper8533]

Table of Contents 1) Signalling Systems 2:07 2) Pituitary 3:19 3) Hypothalamus 4:17 4) Thyroid 4:52 5) Adrenal 5:38 6) Pancreas 6:51 7) Biolography 8:49

[@xsjgalsabg]

my teachers literally put these videos on in class and leave. They're getting paid for this.

[@TheWolfgangGrimmer]

+xsjgalsabg You'd think they'd tell you to watch this at home and actually do their class when school is on.

[@joeyb649]

+Grant K Yes teachers get paid minimum wage..... specially at state schools... no benefits... FOR LIFE either...

[@ainmjoix]

in America?

[@PrycelessIrving]

yeah, teachers actually get paid terribly for long hours and a heavy workload.

[@yaqarianfanashira]

xsjgalsabg Mine too ahahahha but Hank teaches better than them half the time so I don't really mind

[@mulwelimushiana8388]

LOL, This is my first time commenting on a youtube video, I just couldnt let it go. I watched this video out of interest, I have got to say this guy is the funniest lecturer I have never ever ever ever ever met. you too good man, I got myself watching this whole video even though I am writting an entirely whole lot different module exam tomorrow. BIG UP

[@funnystuff1284]

Why can't hank and Vsauce be my teachers? Life would be perfect.

[@funnystuff1284]

You know damn well what I meant smart ass

[@coreynorman3083]

Josh Behrens fuckin served

[@purum6060]

Josh Behrens LMAO

[@GoatPunishment343]

But they're really unintelligent humans, why would you wish that scenario would come to occur you noob!!!!

[@GoatPunishment343]

MrJacktheGC123 says the guy that plagiarises people and can't read

[@awsmrandomness]

"Sex glands come in two different flavors..." - Hank Green, accidentally making oral sex jokes since 2012.

[@Luminary2024]

ahaha

[@rynsawyer4185]

+Sepiida Nice... now I'm feeling awkwarder than I am usually.

[@eli19151]

Yeah... seriously, that was the cutest thing ever :D

[@skyofstorms]

Nice to see another brony/pegasister in the comments of an unrelated video. #BroniesFTW

[@nickkidson337]

Hank teaches me more in these 30 min lessons than my biology teacher does in 4 years

[@Danxoxox]

I want to make a really important distinction that wasn't made in the video. An Exocrine gland is not synonymous for "secretions outside of the body." An Exocrine gland is a gland that secretes through a duct, which yes, primarily includes secretion to the outside of the body like sweat and salivary glands, but it also includes glands that secrete inside of the gut, such as the pancreas secreting enzymes into the lumen of the small intestine. Don't let that trick question on the exam throw you off! ;)

[@zeannajanmohamed4479]

technically speaking though, your small intestine is actually the "outside" of your body, since your alimentary canal is actually just this giant and long weird hole inside your body connected to the outside world via your mouth and anus. An exocrine gland does put secretions outside the body because like you said it uses ducts to secrete things onto an epithelial surface, just make sure youre careful when explaining what is inside vs outside when you consider your body :)

[@btshavemercyonmyheart7892]

isnt endocrine gland the secretion of hormones in blood ?

[@jadattia6723]

well said , and more specifically : an endocrine gland throws its hormone directly into the blood stream .

[@greennitricoxide2706]

you saved my test score. Thanks.

[@StrongMed]

The "glands" that become swollen when sick aren't true glands in the medical sense (i.e. they aren't part of the endocrine system, nor do they secrete hormones). Swollen "glands" are actually lymph nodes, which are part of the immune system, and are responsible for producing antibodies and generally helping to coordinate the body's response to infection.

[@zeeh8661]

test in 13 hours and this is my first day studying FML!

[@zeeh8661]

+Jesse Piazza barely got C+ for the class..lol I know if I didn't study last min I could have gotten an A- or B+

[@johnpalcon7570]

exam on 6 hrs and first time studying and manages to get A- in Gr12 Bio U

[@FenixNations]

sounds like a win to me

[@lolars__]

Test in 10 hours 1 time studying in 2 weeks :) oh boy

[@dannycamello6106]

Final tomorrow, barely studied

[@8josyjos844]

For all the people asking for slower talking, turn on the captions/subtitles!(the cc button) it's very helpful! I like it a lot! =)

[@davidscavone3475]

ACTH - would not actually cause the release of epinephrine; it would cause the release of adrenal cortex hormones, e.g. Cortisol and Aldestoreone. Epinephrine and norepinephrine are released from the adrenal medulla when it is innervated by the sympathetic nervous system (neural stimuli) when the body is experiencing short term stress (exercise - anxiety - shock). Which brings to the next point - Glucagon is mainly released to maintain homeostatic range of blood-glucose levels when an individual is fasting. When an individual is doing "push-ups" this triggers the short term stress response - by the sympathetic nervous - and thus the key hormones in this situation would actually be epinephrine and norepinephrine - which stimulate glycogenolysis and gluconeogenisis (amongst other things) thus increasing blood - glucose levels for muscle cells

[@benlelek1411]

you remind me of squidwird from spongebob cuz you are smelly

[@stijn4687]

go out and play with the other children in the garden......

[@tiffanycrosby8402]

thank you, because I have that in my lecture notes and thought I had lost it!

[@StrongMed]

Adrenaline (a.k.a. epinepherine, although many people use the term adrenaline to colloquially refer to norepinepherine as well) is not instantaneous. The instantaneous response that is felt is due to the actions of the nervous system: the central nervous system (i.e. brain), and the sympathetic and parasympathetic aspects of the peripheral nervous system are all involved. Neurotransmitters are responsible for the immediate effect, while adrenaline may take anywhere from 15-60 seconds.

[@tylerlenzi]

Thanks to you I got a 97% on my science exam

[@katbee47]

I'm a nursing student, and your videos are a BIG help in reinforcing what we are learning! Love them!

[@skatesnlaces09]

I LOVE THIS!!! Seriously I was assuming this would be part of the crash course A&P that is currently going, but getting to see Hank circa 2012 is just AWESOME.

[@roseinutube]

I hope you know that you are currently helping me SO much! These crashcourse biology videos are helping me get into a medical university I have been dreaming of going to! Things are explained so much better than any textbook i have found till now! thank you!!!!

[@emmaporter2064]

i wouldn't pass anything in biology without these videos, i am actually so thankful for you Hank :D

[@MsKerrik68]

Thank you Hank, you have just managed to help me not be so terrified and overwhelmed by my physiology and anatomy exam tomorrow. Thanks for ever! :) Excellent and informative clip

[@heyysimone]

"For those of us who dont have all friggen day" haha. Im doing a summer paper about human bioscience and these videos have pretty much helped me understand my textbook :)

[@MeegsyB]

It amazes me how Hank and John can take two of the most lecture based, boring subjects (at least by popular opinion, any way) and make it funny/interesting. I tip my hat to you two, great job!

[@MCVarib]

I SWEAR HANK -YOU ARE THE COOLEST GUY!!! I wish you were my science teacher in everything...YOU KNOW EVERYTHING!

[@chelsealord9178]

My instructor is on the ancient side and did a good, but very long drawn out explanation (while putting me to sleep) of the endocrine system. This is an AWESOME recap before an exam with some cool added info. Shared this with some friends in my class and they all agreed these vids helped them out a lot! Thank you HANK!

[@rashmika9742]

Remember when Taylor Lautner was relevant?

[@wendylackey4531]

My PN course utilizes your courses. I binge watch to absorb as much information as possible before each test. So far I am doing ok. Thank you!

[@crashcourse]

make sure you haven't "hidden" the annotations - it's the button on the video that looks like a text box (bottom right). they should be there for everyone.

[@kirstiesquillace4560]

i struggled for three nights trying to cram in as much studying of the endocrine and got no where!!! after 11 minutes i am completely satisfied and feel so confident :) THANK YOU!

[@mjg4807]

i literally learned more in that 11 minute video than two hours in lecture....i need to re think my strategy. Great videos guys!

[@giboranak]

this is a nice change to most channels that just spew their information with no flavor what so ever. this is useful as a recap before delving deep into the belly of the beast and digesting the info. thanks a bunch

[@janineapb]

Hank, you're the funniest, most entertaining and information loaded teacher ever 😂😍😍😍

[@mylajanedamasco1089]

This is the most comprehensive and clearest explanation of the body systems.

[@mykadassano438]

"We're doing science, pay attention!!!"

[@myprrrecious]

Myka Dassano :)

[@alarqrez3479]

Am I the only one who was not paying attention until then, lol

[@camerontaylor7471]

And that is the mind control in full effect...

[@AmeliaDesign]

I don't even remember how I found you guys, but this has helped me get through my COLLEGE biology class. It is online based, and I'm an audio-visual learner, which makes it hard for me to understand complex topics by reading through forums. Love the humor and crazy (but so very real--I get hit by ducks almost daily), illustrations. Please keep it up!

[@melissahalby7072]

I loved when Hank gets hit by the duck! so funny haha

[@sonlam1047]

ALL TO HELP YOU ON YOUR QUEST TO VANQUISH THIS DASTARDLY DRAKE

[@Ambrocious93]

I started my medical degree on Monday, this channel is a freaking life saver.

[@CallMeCJ_]

You are incredible Hank. My sister has missed nearly the entire first half of the school year due to illnesses and injuries. She was able to self-teach her the material on our Science midterm, using you and our textbook. You deserve all my internets, and all of my future offspring's internets.

[@mismonty46]

Thank you SOOOO much for making Crash Course. I just started my sophomore year of high school, and I'm taking four science classes. Already I can tell that I'm going to need these videos to drag me through Human Anatomy & Physiology. You rock, Hank!!

[@kelanianderson-jemal5283]

I truly enjoy these crash course videos!!! Hats off to the entire production team for blessing us with these amazingly educational tutorials on science topics. Kudos!!

[@KarlieCol]

I was just recently diagnosed with Hypothyroidism and this has been the first time that I have actually fully understood what is going on in my body. Thank you so much, Hank!

[@AppendixVermiformis]

When an angry duck hits you in the face, your adrenal MEDULLA is the one secreting epinephrine, stimulated by the sympathetic nervous system. The release of ACTH would be stimulated if the angry duck was so angry it hit you in the face all day, causing you distress, and stimulating cortisol release by the adrenal CORTEX (that's why it's adrenoCORTICOtropic hormone).

[@flesheater2012]

Yet another project saved thanks to the awe inspiring knowledge of these two brothers. Thank you, thank you very much indeed.

[@helenjones9322]

Love this guy, so useful, thanks :)

[@josepasco7457]

Haha!....Happy New Years!!...very informative lol I now know what the nads are for ty ty.....

[@benlelek1411]

i like his glasses

[@OliveroG]

I can't thank you guys enough, your Crash Course in Psychology aswell with the Nervous System and Endocrine System has helped me so much, i wish more of my friends spoke english so they could watch this awesome series!

[@alexvaldez9941]

SHOOT!!! i need to learn so much before tomorrow! I have my end of course major test tomorrow .... ima cry

[@HemmieHaru]

How did it go?

[@juliasullivan2765]

Had to watch this for school. Actually liked it lol. Usually she picks bad videos for us to watch but I like crash course best. This is my favorite video

[@youngnattymusic]

It's amazing how u can teach so many units in one course. And Hilarious ! XD .... teachers should just put up Crash course to teach students everyday so we don't waste time with misunderstanding and unnecessary teachings

[@rumderful]

And Hilarious ! XD

[@joshuahadams]

My bio teacher has us watch these videos for review or introduction to units.

[@UndergroundPebbles]

These videos allow me to constantly amaze my teachers with my knowledge.

[@ruisucepi]

I love you!! Thank you so much for this. Helped me a lot with for my Physiology class.

[@cweb1988]

this is the greatest thing ever. I love learning about the body. And this does it so fast, so succinctly, and so clearly.

[@UrefutGeonsur]

Hank for president!

[@pandapoogey]

I honestly don't think I could have passed my first year or a levels without your topics last year, and now you're coming this topic too!!! On time :-D thanks hank

[@yenikavega939]

He’s way better than my teacher

[@hixsongarren]

one of the biggest reasons i love crashcourse biology is that i can learn about sex related topics and not have insanely immature peers laughing at the slightest thing. its awesome and fascinating!

[@cosmicdemon5279]

anybody still using this in 2023? lol

[@elizabethshields1097]

Your videos are the best! I'm in pharmacy school and it's my for sure go to when I don't understand something with A and P. Thanks

[@echelontimepieces22]

this merely scratched the surface of the endocrine system

[@SJKlapecki]

Well, they can't explain the entire thing.

[@SUNNYBOIBIZ]

crash course

[@leonfromny]

My teacher uses this as an overview before we go into the topic.

[@theblindlucario5093]

My ap bio teacher doesn't even explain it.

[@modelaircraft12]

Linges Hels this is why we have doctors who spent most of their lives learning about the endocrine system and its respective pathologies, this is just an introduction, and a pretty good one :D

[@karalovell2]

You are by far my favorite go to for backing up and putting into perspective what I'm learning! Keep it up! You're awesome, interesting, and funny!

[@hannahkahrs9132]

Im watching this because I dont want to read the lesson. It's really long.

[@tanushreesudheer3750]

Same...

[@Leo-ew3lx]

Right there with ya

[@anupamatiwari293]

same

[@Miike183]

Hank I swear it's like you're following my Biology syllabus, I love these videos!!!

[@redarcs5273]

Two different flavors...

[@davetriplett8109]

Redarcs Just go with it))))

[@averysandoval541]

thank you. I have my ap bio test in approximately 1.5 hours and this makes me feel so much better.

[@umadwivedi5508]

Oh my god. ADIPOSE. IT ALL MAKES SENSE NOW.

[@lorddio2572]

whovian

[@HowREaliZShE1]

This was just what i needed . Quick, Simple and Easy to understand !

[@midnightpaleo]

Stupid hormones! I'm studying for a test, stop thinking this guys is adorable!!!

[@icebergi]

Arielle .Young Ugh I guess it's my turn to study for a test where this is in. xD Eh, the bad luck we all have. ._.

[@midnightpaleo]

XD

[@mikhailablack2656]

He is adorable!

[@csagan-bh2qy]

Ari Young ,its fun

[@poppyrose1549]

*guy's

[@louisegeraghty6508]

He did cover the Adrenal Medulla by discussing the release of Epinethrine but agreed, the Adrenal Cortex and Parathyroid were missed which is a shame as this is the best description of the Endocrine System I've come across so far. Love it!

[@parthshahani3071]

Hey where can I get the summary of what u explain in free PDF form? P.S.-Too good videos...!!!

[@dashkajulien6061]

You can get this in PDF form, how?

[@Zagareus]

Hank is the real MVP in my education.

[@Thomas_Winters]

thank you for the duck part. i am pleased.

[@shreyalitoria7648]

its very nice to get to know about these glands in brief.

[@anthony-riley]

9:47 "EMBYOS'

[@MeiDaGay]

lmao!! XD

[@TheBoombox200]

I have a test on the endocrine system tomorrow! Perfect timing!

[@GroundZero000]

Loved the angry duck part!!

[@LauraB5345]

I learnt more from this video than I have In 2 weeks of A level biology !!

[@adamchen5936]

sex glands come in two different flavors.

[@meetan-]

Lovely fantastic I am a non medical man...still this video educated me so well . .now I am confident of my body . ..thanks a lot

[@cutiepiedaina]

omg i died at the two diff flavors

[@JByankee94]

Thank you Hank for explaining THS and thyroid levels so much better than my doctor has been. I now understand why high THS levels mean under active thyroid and vice versa.

[@haree542]

Great work man keep it up, i learnt heeps

[@meredithbarrett8395]

I loved this! You make the very complex endocrine system, short, sweet, simple and fun!

[@angienaranja]

All these people asking him to speak slower.. Maybe you're just too damn slow. Quit complaining.

[@avonbrownie]

like have you heard of PAUSE?! lol

[@torgeirknutsen2779]

Put the speed down to 0.75

[@nspjr14]

BEST CRASH COURSE BIOLOGY YET!

[@ArtsyChick24]

I thought you were gonna talk specifically about the hormones like FSH and LH and Estrogen and their role in like menstruation.... pls someone help I have an exam tomorrow...

[@beth9603]

SAME I've biology exam tomorrow. :( how did yours go?

[@ArtsyChick24]

***** it went okay...I'm praying for like a 5 (IB grade which is equivalent to like a B-)

[@beth9603]

You'll get it! :)

[@arjunpachory]

Best. Crash Course (Biology). So Far. Risky to say ever here, when one can be so easily proven wrong within a week!

[@oliedason8682]

This helped Soooooooo much :D

[@SaHoppa]

This video is awesome - RN student here thanking you a lot.

[@Mereshort]

This is my favorite. 2019. So funny.

[@DerekABozzi]

I cant express my appreciation for what you have done here and all other videos. thank you. YOU ROCK!!!!!!!

[@marxhamakhan1]

Sal and Hank are Gods among men..

[@clericsson]

You forgot John. Boohoo.

[@leo-hao]

Wait there’s a third brother?.? I’m missing out!?!?

[@payasitarosita]

Talking fast makes it more interesting. Love it!

[@brandy1185]

I wish he was talking a little about the lymph

[@darrelstinkmeaner4673]

I KNOW I CAME HERE FOR LYMPH

[@madisonrudkin5430]

darrel stinkmeaner Me too!

[@dawn7177]

I have an exam in two hours and oh boy this helped me a lot.

[@sahilmalhotra2750]

im dying! "sex glands come in two different flavors" xD 8:11

[@revelreads]

I have to give a 15 minute seminar on Hashimoto's Thyroiditis (a type of hypothyroidism) in my class tomorrow, and I can't tell you how much this helped me! Thanks Hank. :D

[@nehajain516]

anyone in 2019?

[@xps7370]

I will be in 2020

[@mariagonzalez8407]

Neha Jain 2020 🙋🏻‍♀️LOL

[@destinyAlvarez1]

Neha Jain yes

[@galahadthegreen5696]

I’m in 2020

[@scollins326]

Totally dig this fun take on delivering educational information. Don't judge me when I say this was a totally amazing way to help me keep up with my college A&P class. Thanks!

[@not_relevant]

can you be our teacher please........................................

[@vincentmedina9960]

I know right? Even though my AP Bio teacher is just as good as Green!

[@purplelilikoi1]

this is literally the best thing to study from. he's hilarious and the material actually makes sense. YOU GO JOHN GREEN!! :)

[@HolyToledo-]

"A little snuggle of baby"

[@stephieidk]

My entire lab lecture explained in 11mins instead of 3 hours trying to stay awake in class and not understanding a thing. Thanks Hank!

[@jdcelery]

you are cute and smart :)

[@bevleymus8055]

The endocrine system sends me to sleep. First thing that's kept me interested long enough to figure out how any of it works. Brilliant!! You're getting me through my diploma.