Joints: Crash Course Anatomy & Physiology #20

[@drraltz]

Hi Hank!!! 8 years since you posted this video. I still follow you today (2023). I am currently following you and I am now a medical doctor. I still use your videos as a solid base when I need to focus research. Thank you for being my modern-day Bill Nye. Lymphoma has nothing on you. Thank you for being one of our great minds.

[@youtubequeen4251]

Joints Meeting places between 2+ bones More joints than bones Work together to move~muscles contract across joints moving 1 bone towards another 8 cranial 24 facial Atlas holds head Cervical 1-7 Thoracic 8-19 Lumbar 20-25 12 ribs Structural Fibrous~connect bones with dense fibrous connective tissue~don't move Cartilaginous~unite bones via cartilage ~don't move ~2 types synchondrodes & symphyses Synovial articular cartílago , bandlike ligaments, joint cavity, synovial fluid, sensort nerve fibers & blood vessels Plane, hinge, consular,saddle.pivot, ball and socket. Gliding movements Angular movements ~flexion, extension, hyperextensiom, abduction, addiction, circumduction. Functional

[@hannahhuie4205]

Can someone please write an anatomically correct bone song because college students everywhere need it

[@HedgieHoggs]

I found one! It doesn't have every single one, but it has most of them. Just look up anatomically correct bone song. it's the guy in the red shirt. It's so catchy haha

[@cecilehouseweart1706]

HedgieHoggs

[@inexorable100]

HedgieHoggs

[@Goblinmode420]

HedgieHoggs

[@fathima.ranwar1657]

HedgieHoggs it better be rap

[@crashcourse]

Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App! Download it here for Apple Devices: apple.co/3d4eyZo Download it here for Android Devices: bit.ly/2SrDulJ

[@chickyhaga]

bruh

[@ArakkoaChronicles]

I don't know about you, but I found Hank's bone jokes to be humerus.

[@mikekelso138]

Verroak Krasha bu-dum tsss.

[@minimooster7258]

So amazingly humer- wait you already used that pum

[@aidanmeisner6646]

+Verroak Kasha you are so punning

[@paulanthonycordova1724]

+Verroak Krasha HAHAHAHAHAHA!!! XD

[@carlosW401]

scam

[@TheHumphrey367]

I'd like to take the time to thank you for making these videos; i am taking college A&P, and I often have trouble understanding the content; however, your videos are clear and fun, and they help me comprehend the content!

[@mountainman6645]

I’m in 8th grade am I not supposed to be here?

[@Patissierrouquin]

I'm taking an A&P course online and your videos have helped me go from a C to an A. Thank you so much!! It helps to have images and summary explanations after reading 40+ pages of difficult material. Thank you again!!

[@karenrae5434]

😄This was GREAT! I've been a professional nurse for 40(!)years now & of course learned all the basic A&P of all parts of the human body. As a 60yr old person living in 1 of these human bodies is also another reason for having a Very basic knowledge of the workings of this extremely useful body😊 However, as this thing ages, there are those minor (if we're lucky) "glitches" that occur now & then. When any of these things become annoying for more than a few days, I generally look to refresh my understanding of whatever system needs some upkeep I may be overlooking. This used to be a quick(or not😕) look thru 1 or more of my old nursing books. But This is GREAT! & FUN! & Moving!-Really moving!, something my old books don't do,except when I drop 'em. So, THANK YOU! For making this all fun again!😀 ...&, as I watched this on my phone, a whole lot easier than those old text books!

[@nolanwestrich2602]

♪ The spine bone connects to the ... Spine bone. ♪ The spine bone connects to the ... Spine bone. ♪ The spine bone connects to the ... Spine bone. ♪ The spine bone connects to the ... Spine bone. ♪

[@shanessareesegutierrez965]

The spine bone is connected to the hip bone

[@KateyHach]

A really good way to remember pronation vs. supination is to cup your hand. Supination is when your hand makes a "soup" bowl. (:

[@Burning0Lilac]

That was what we used in school. Supination (Cup hands like you're holding soup) and Pronation (Like you're playing pro basketball)

[@maddieodonnell8982]

Great way to remember that, thank you!!

[@albeezhuang5]

Thank you so muuuuuuch~ it does help!

[@edelainemaegabriel6100]

Our mid-term exam is fast approaching but I find reading my notes all over again boring. Watching crash course is such a better and interesting way to review. Thank you for this

[@OKARO_ATOTI]

Ooh Hank and John Green. 2 semesters of AP classes, late night cramming sessions. I still can't pick between you and John. Now I watch you guys for the joy of learning. Feels kind of creepy because I don't have exams but I keep watching the shows. Thank you so much for doing what you do.

[@okbye5697]

i wanted to study biology but ended up crushing this lecturer.ughhh.periodt.

[@theaterqueen95]

I JUST found out that his brother is the guy who wrote "The Fault in our Stars", and my mind is now totally blown...

[@muq5640]

John Green and Hank Green c:

[@reesespieces22]

+Andie Bunker That's why he seems so similar to him!

[@gmansplit]

+Andie Bunker And paper towns

[@nadahussain3161]

THAT is why he looks so similar to John. I always knew John Green's brother was Hank but I never realized until now omg. No wonder his sense of humor is so nice

[@inalifuu]

oh my gosh really??

[@rybranflakes2511]

Speedy and impressive. These videos are very to the point with a lack of story, which totally works for study time. They have improved a lot since the first season of their channel.

[@dennisquinn2575]

"I am so glad you guys are not five years old..." ...as I watch this with my five-year-old. Lol

[@drrush6923]

so he's 8 now?

[@daveforfav7650]

@@drrush6923 ye

[@Player500-1]

That's embarrassing...I hope you covered his ears 🙉😂

[@mattea6534]

Lol...embarrassing...

[@jordanjames7287]

Not true🙄

[@carlosguerra24x]

Hey i'm a nursing student and this was a great way to learn back in my core classes. This can get people interested in medicine or frankly anything to deal with science. Awesome refresher. :)

[@dianetietcheu3891]

He is good , but lord he speaks so quick.

[@TabinaKamal]

Turn on the subtitles, I agree

[@michellecorpus8372]

me too.

[@akalankasamarakoon5182]

Michelle Corpus .

[@LovelyTati]

Diane Tietcheu c

[@RobPattProductions]

You can change the speed with the 3 dots in the top right of screen

[@GuyWithAnAmazingHat]

When I studied anatomy for my animation art course, we are required to be able to draw someone's skeletal and muscular structure just by looking at their photo and during nude model sketch sessions. Now when I look at people, I tend to x-ray vision them involuntarily.

[@Rickity2345]

Remind me never to be in your line of sight.

[@angeldude101]

GuyWithAnAmazingHat When this starts happening, It's useful to try and think about anything else immediately.

[@MegaFarinato]

GuyWithAnAmazingHat those were my only usefull lessons in art school, tbh...

[@GuyWithAnAmazingHat]

MegaFarinato I chose animation because it is the most scientific of all arts. You need to learn anatomy and related biology, psychology, physics, mathematics and programming for CGI animation. And depending on your projects and specialisation, you may learn engineering, robotics, architecture, fashion, particle, light physics etc. Animation is about creating a universe with life, so we practically need to know how everything works.

[@MegaFarinato]

GuyWithAnAmazingHat im working on my demoreel right now =)

[@worrallheather]

YOU GUYS TEACH ME MORE THAN MY PROFESSORS, I LOVE YOU

[@rileys.7079]

This helps with last minute studying for my A&P exam

[@Du7499]

NOBODY! Breaks it down like this guy. Legend 🐐

[@laurenp.184]

How does he manage to be such a dork and so cool at the same time it’s not fair

[@austinthompson6296]

I hope this helps someone, my professor told me today to think about soupination like you are holding soup and that's one way I remember it because you can't hold soup with your palm facing behind you, you would hold soup like you hold most things, with it sitting on your palm

[@rangergxi]

So there is a Skeleton inside of me? That is spooky.

[@TheMemzie99]

Loli21 the skeleton war was weird for all of us.. I know that confusion, hang in there brave one

[@Bluecho4]

Loli21 And to the Skeleton, there is a human they are trapped inside. But it's only when you two learn to overcome your prejudices and work together that the real magic happens. The magic...of Dance! **Techno Beat Fires Up**

[@WilhelmSchicklegrube]

doot doot

[@FlyingJetpack1]

Loli21 #3spooky5me o_o...

[@gampolo2o]

Loli21 But you are just a brain, which is in your skull, so really you are inside your skeleton!

[@nicolemorar227]

In this crash course video, I found it very interesting and easy to understand. - I didn't know that there were more joints in your body than bones, I guess because I never thought about it. - The way he demonstrated all six different joint movements (plane, hinge, condylar pivot, ball & socket and saddle) made me remember what they all do. -The reason for why people dislocate that shoulders and hips so often now makes sense.

[@hildiehoeschen4781]

The cartilage that makes up the external portion of your ear (the pinna) is actually neither of those two types of cartilage, but elastic cartilage (at least, that's why I learned in my own anatomy & physiology education). Absolutely love this and all these A&P videos, but the makers may want to edit that note at 0:47!

[@Healtheworldx]

I'm a student paramedic and I have an exam on the skeletal, nervous, respiratory and cardiovascular system tomorrow. Last minute revision might just pay off with this very useful video

[@GeorgiaGrown90]

Shout out to all the peeps who can actually pick up stuff with their feet ^.^ could do it since i was a toddler.

[@nativaconcepcion879]

currently getting me thru anatomy n physiology BIG THUMBS up to this guy! got me thru medical assisting n coding school n now nursing school...urban changing life's bro..thanks

[@kristawilliams4347]

i learned... 1. you have more joints than bones 2. you classify joints by what they do and what they’re made of 3. there are 6 different kinds of synovial joints 4. within each joint are different names for the movements they make possible

[@AlliHahn]

The dancing analogy made it so much easier to understand!

[@pedrosabino6441]

I still remember when poor Hank had to explain things visually by drawing them backwards on a mirror with markers while John had a fully dedicated graphical design and animation team to do that. Go Hank! Haha

[@jmcosmos]

... and I now have one joint fewer than I used. A few weeks ago I had a fusion of my C5 and C6 vertebrae done (blown-out disc repair), so what used to be an intervertebral disc is now bone chips slowly growing together and fusing to take its place, all held together by a metal plate.

[@savannah4439]

Don't worry Hank, I rose the roof so high at prom this year

[@Rjh_-mj9tl]

In this video, I learned that synarthroses are joints that don’t move at all while amphiarthroses move only a small amount. An example of an amphiarthrosis is the pubic symphysis that moves slightly to absorb shock. I also learned that diarthroses are fully mobile and are mainly located in the limbs. I then discovered the distinction between the fibrous, cartilaginous and synovial joints. Fibrous joints are connected through fibrous tissue and are mostly immobile. Cartilaginous joints are connected through cartilage and also don’t move very much. Lastly, synovial joints are freely mobile, separated by a fluid-filled cavity and have 6 different, more specific types of joints. These 6 are plane joints, hinge joints, condylar joints, ball and socket joints, saddle joints and pivot joints.

[@kaylahD_ford]

Every time the introductory song comes on with that little animation I get really excited for what's to come. I think I've officially become a nerd. Thanks Crash Course.

[@mariagarcia-nj8xx]

From this video I learned the different types of Structural classifications and how too differentiate them, and also how too differentiate the functional classifications

[@nativaconcepcion879]

currently getting me thru anatomy n physiology BIG THUMBS up to this guy! got me thru medical assisting n coding school n now nursing school...ur changing life's bro..thanks

[@kobi2260]

This is genuinely the funniest content I've found on youtube. I didn't come here for laughs, and I find myself laughing out loud. Hands out for you guys, thank you so much!

[@xXSabzyKababzyXx]

CANNOT SUFFICIENTLY EXPRESS VIA VOCABULARY JUST HOW MUCH I LOVE THESE. YAYYYYY

[@thunderchief885]

My son and I watch every crash course video you make. My wife and I homeschool our son, and I get to do Science, Math and History. I find that even though my son is seven, and we have been doing this for two years, he has always learned stuff better from His Friend Hank and His Other Friend John than from the official curriculum. Phil is a new favorite, but Hank is definitely No. 1. The exposure to "College Level" material is certainly turning our kid into a STEM whiz. He might only "get" 5% of the material presented, and he certainly isn't worried about passing his AP test (yet), but that is 5% he does not get exposed to any other way. You guys make the official curriculum we do easy. The best part of your videos is the way that you present the information with the unspoken assumption that if you are watching it, you can understand it. He enjoys the Crash Course Kids and SciShow Kids videos, but he usually demands to see new Crash Course A&P videos as soon as they show on the cue. This video, however, opened with the statement that "I'm glad you're an adult". After three minutes, he was done. It made me a little sad.

[@tinytanaka8779]

I would love if you could dive deeper into this. I'm a medical student and anatomy is KILLING ME. having to know each of the bones' little characteristics, like sutures, prominence, processes, etc. It would be really helpful.

[@kixxyoungmoney]

This Chanel is the reason i got an A on my last A&P exam ily

[@nicolesophia7]

if you keep clicking on 0:14 it's quite entertaining :)

[@tanyachurchill6055]

These videos are saving my life.

[@lukemcfarland2690]

1:02 He's smoking a JOINT

[@googalove]

I couldn't even focus I was too busy laughing lmao

[@asmath.r]

HI FIVE

[@estebanromero7058]

Aaayyyyyyyy....

[@jesusiskingofmyheart]

These videos have been helping me pass anatomy. I love these videos 😂📚📝✏🙌🏼 So helpful!!

[@MrThingstodotoday]

1:00 was that skeleton smoking a blunt?

[@FrenchBoi42]

MrThingstodotoday A "Joint" to be precise.

[@Doomroar]

MrThingstodotoday He is smoking an articulation.

[@NoyumiAo]

Alex Nicolae oh my god

[@JeoAndFriends]

lol that was pretty clever !

[@lloplop]

+MrThingstodotoday ha! and the wild purple star sunglasses from like the 60s?? to contextualize the joint so you know its weed and not a cigarette lmao surprising for an educational group that is educating a lot of children

[@chockitkat3776]

Goodness I love Crash Course's sense of humour, I died at the starting, and I was like "what song is that" and i was like OOOO IT'S THAT ONE and I laughed so hard

[@delvesdg]

As one who studies the martial arts, all I could think of is all the ways these can be broken.

[@makhanlal5423]

Hindi mea translation kare.

[@sw-ri7bl]

🤣 broken bones are your thoughts

[@tanvi6033]

@@makhanlal5423 एक के रूप में जो मार्शल आर्ट का अध्ययन करता है, सभी मैं सोच सकता था कि इन सभी तरीकों को तोड़ा जा सकता है।

[@lorylarochelle7879]

Honestly these videos help me so much for A&P . Don’t know what I would do without them ☺️

[@lilly1693]

I love how at the end of the video it shows what we learned about so we could click on it and go back to a topic to review--Super helpful!

[@hopehemingway6279]

I’m a high schooler that binges crash course like most of my peers binge tv shows. What can I say? I like science.

[@StrayKids_et_al]

How does 'double jointedness' work then (I am aware this does not literally mean having double joints). For example I can turn my hips so that I can bend my leg at the knee and rest the bottom of my foot flat on my chest.

[@emilyformato4044]

In some cases, and I think this might be what happens to you, your hip sockets can be really shallow, which lets you have hypermobility.

[@CubeMasterChris]

This reminds me when my friend asked me "did you know you have more joints in your body than bones?" I told him "thats impossible". Then here is hank telling me I'm wrong LOL.

[@sarahperez3789]

there are more joints than bones in the body! functional = movement structural = made of 6 different synovial joints: ball and socket handle plane joint (gliding movement) hinge condylar saddle joint flexion-decreasing angle extension-increasing angle rotational-motion that turns bone around axis hyperextension-extreme

[@snkit3436]

B37(2) 3:42 3:49 4:40

[@bcange11398]

God Bless crash course i have an exam tomorrow on joints and movements and this video refreshed everything i needed to know

[@max_176]

i think this is my favourite crashcourse video so far

[@ElliottCasey96]

I go from crying while studying to laughing watching these videos. You are the best. Thank you, thank you!!

[@thomaslisi2030]

I love you. Let’s be honest anyone who dislikes this just failed their anatomy quiz.

[@rachelmansfield5271]

Whatever, my five-year old likes watching crash course. She knows the proper names of many of her bones. Kids are totally capable of understanding science.

[@sarenokai8909]

I challenge you to make that 2 1/2 hour song about bones so I can memorize it lol

[@puroboludeo1]

This video makes so much more sense when you watch it after getting into medical school...

[@TheTexas1994]

"Raise the roof, if people still do that" They don't

[@JoeySehn]

Oh... I do

[@sabrinaat13]

Almost spat up my coffee when I saw that skeleton smoking at 1:00!!! LOL Made my morning

[@lsc66416]

I love all your A&P videos. You bring the content to life and make it amusing to learn. Thank you!

[@cozylifewithjc]

Why are you better than my professor at explaining this?? Thank you so much for all your videos I got them on repeat!😂

[@tirzazuniga6653]

your jokes and humor destress me while reviewing for my HESI exam, Thank you.

[@vincentpoon8485]

This video is amazing! Good job Patreon Man

[@christelletchety6022]

There isn't a best way to learn than do it with humor. Thank you Teacher😉❤

[@DuranmanX]

now we need a Crash Course Dance

[@JeoAndFriends]

No, my friend, YOU need a crash course dance. Good luck!

[@maxximumb]

***** Will the revised bone song appear on Hank's next album?

[@jebus6kryst]

I volunteer at my local natural history museum and ever since I watched the documentary "Your Inner Fish", I've told guest about the bones that make up our arms and legs the same way (I.e. One bone, two bones, several little bones). However I use the front arm of a Brachiosaurus to demonstrate the bones.

[@gabriellethies5017]

dude.. .cant tell you how many times youre videos have helped me understand such complex concepts and also for things like this! keep it up.

[@cmiro2000]

you need to do a video on the Axil and the appendicular bones along

[@RemooAbdullah]

best youtube channel ever made

[@Razrman]

This video has cleared all my questions. Thanks so much.

[@destmichael]

Thanks for helping with my A&P1 course learning.

[@piyushmahapatra9804]

best teacher in the world is her vote it guys :D

[@ciarasookarry]

I was waiting for this all day!!! Yes I am a nerd.

[@dakotaskye7455]

1. I learned that the more flexible a joint is, the more fragile and unstable it ultimately is. This makes sense when you look at the ratio of hip and shoulder dislocations, as opposed to other joint injuries. 2. I learned that the Atlas Vertebra is named after the Greek God Atlas, who was forced to hold the weight of the world on his shoulders as punishment. This vertebra holds up our head, so the connection makes sense.

[@alimcmtcs]

WOW!!!!! You dancing analogy is GENIUS!!!!! What a fabulously practical, relative and memorable way to remember how the joints move/work!!! Excellent!!! THANK YOU!!!! 💃🕺😀👍🏻💙

[@damarisaida]

Structural joint classifies what joints are made of and Functional joints classify what joints do. Fibrous joints are connected w dense fibrous connective tissue and do not move. I found it interesting that joint cavities are made up of fluid instead of a specific type of cartilage.

[@tashgodschild9677]

This dude is extremely smart... thanks for these videos! Don't know what I'd do without you!

[@yusrarahman2635]

He's so cute when he dances!😘😘

[@GingeredHonii]

*his far away from your reach...* *You cannot get any closer..* *you'll just get lost in the middle of the dessert...*

[@GingeredHonii]

Yusra Rahman was that necessary? i was only joking girl :T

[@JordzzO]

simp

[@nancyqueen5730]

I LOVE CRASH COURSE!

[@aryansaeedi7618]

Omg this guy is amazing! I learn everything by watching only one time. I love you 😻😸

[@riseandgrind3931]

Can you do one with all the skull bones and how it connects?

[@goyoshio13]

Love crash course thank you for making this fun to learn!

[@ChesterRico]

To be honest I don't even wanna know about this stuff. As far as I'm concerned, the insides of our bodies consist of marshmallows and our joints move by magic.

[@ockertoustesizem1234]

we don't have marshmallows in our body and our joints don't move by magic either but I gotta say lol

[@tanyavansant3386]

Hank, you're on fire in this one.

[@katiemsipos]

I've had an odd, involuntary popping like a knuckle crack somewhere near my sternum for a few years and this finally prompted me to look up what it is... didn't know there were joints there! Slightly less disconcerting now that I know that.

[@jorgeeduardotellez3660]

I was not able to understand many points of my class, but with this video it all made sense to me. It was easy, fun, and the most important thing I had fun watching it. Thanks a lot.

[@davidrichards1481]

JorgeEduardo Tellez l

[@bummybear7218]

I really like this channel makes uni way more fun

[@warrenmcgreevy4590]

This man is single handily getting me through college

[@skyfly107]

The demos for pronation etc were really useful thanks. I've just got to get all this is my head before my a level pe exam next week

[@Qladstone]

I wish I had watched this video when I was practising snare drum technique a few years ago. Understanding the movements of the various part of my hands and arms and the associated joints would have helped a lot.