The Nervous System, Part 1: Crash Course Anatomy & Physiology #8

Поделиться
HTML-код
  • Опубликовано: 24 ноя 2024

Комментарии • 2,1 тыс.

  • @davidlah5058
    @davidlah5058 4 года назад +6199

    Three principle functions:
    - SENSORY INPUT (nervous system senses the spider on your leg)
    - INTEGRATION (your nervous system processes the input, and decides what should be done about it)
    - MOTOR INPUT (your hand shakes off the spider, it's a response that occurs when your nervous system activates certain parts of your body)
    NERVOUS SYSTEM DIVISION
    --- CENTRAL nervous system - CNS
    - brain
    - spine cord
    --- PERIPHERAL nervous system - PNS
    - around your body
    - SENSORY DIVISION (afferent) - picks up a sensory stimuli
    - MOTOR DIVISION (efferent) - sends directions from your brain to muscles and glands
    - SOMATIC nervous system - voluntary (skeletal movement)
    - AUTONOMIC nervous system - involuntary (heart, stomach, lungs)
    - SYMPATHETIC - sends the body into action
    - PARASYMPATHETIC - relaxes the body
    - Neurons (small part of your nervous tissue)
    - Glial cells (50% of mass of your brain)
    - provide support, nutrition, insulation, and help with signal transmission in the nervous system
    - GLIAL CELL TYPES
    - CNS
    - ASTROCYSTES - support, regulate ions, exchange materials between neurons and capillary
    - MICROGLIAL CELLS - defense against invading microorganisms
    - EPENDYMAL CELLS - create, secrete and circulate cerebrospinal fluid
    - OLIGODENDROCYTES - wrap and insulate, form myelin sheath
    - PNS
    - SATELLITE CELLS - surround neuron cell bodies
    - SCHWANN CELLS - insulate, help form myelin sheath
    1. Neurons are some of the longest-lived cells in your body.
    2. Neurons are irreplaceable. Most are AMITOCIT - when they get assigned a role, they can't divide anymore.
    3. Neurons have huge appetites. They need a lot of oxygen and glucose. About 25% of daily calories are consumed by your brain
    NEURON STRUCTURE:
    - Soma - cell body
    - Dendrites- listeners
    - Axons- talkers
    NEURON TYPES:
    MULTIPOLAR neurons
    - three or more processes
    - one axon, bunch of dendrites
    BIPOLAR neurons
    - one axon, one dendrite (found in special places - retina of your eye)
    UNIPOLAR neurons
    - have only one process (found in your sensory receptors)
    NEURON FUNCTIONS:
    SENSORY neurons - afferent neurons
    -> transmit inpulses from sensory receptors toward the CNS
    -> mostly unipolar
    MOTOR neurons - efferent neurons
    -> impulse moves from the CNS to the rest of the body
    -> mostly multipolar
    INTERNEURONS - association neurons
    -> impulse moves between sensory and motor neurons
    -> mostly multipolar

  • @mobius3608
    @mobius3608 5 лет назад +8800

    10% of views: people studying the field
    10% of views: curious people
    80% of views: students the day before an exam

  • @aliyah1806
    @aliyah1806 8 лет назад +4699

    I literally understand more about this topic in these 10 minutes than I did in my 2 hour lecture

  • @jakub1931
    @jakub1931 4 года назад +575

    Who is system and why is he so nervous?

  • @Armidillodude
    @Armidillodude 8 лет назад +6813

    Why am I paying for college

    • @chloroplast8611
      @chloroplast8611 6 лет назад +333

      For the degree

    • @chloroplast8611
      @chloroplast8611 6 лет назад +18

      mangaka08. How long did thatt kto rite?

    • @asraaoz121
      @asraaoz121 5 лет назад +17

      @@chloroplast8611 😂😂😂

    • @dominictorres924
      @dominictorres924 5 лет назад +39

      The parties fam

    • @3monsters014
      @3monsters014 5 лет назад +125

      tis is high school stuff. I use it for college too but it doesn't cover even half of what I am learning in the classroom.

  • @tarenpineset9278
    @tarenpineset9278 9 лет назад +3117

    I swear it's like you guys have telepathic powers that awaken whenever a biology student is in distress.

  • @malingkas
    @malingkas 9 лет назад +323

    I find more joy and actual learning from this 10 min video, rather than my 2 hour 45 min lecture my prof gives. Thank you Crash Course.

    • @ola1707
      @ola1707 6 лет назад

      malingkas do u learn this in college or university what are you major in

    • @christianvera282
      @christianvera282 5 лет назад

      mimo sandro you can learn it in both , I’m currently learning it in college so I can transfer , just needed a science course without lab

  • @AdamFelibrico
    @AdamFelibrico 8 лет назад +832

    I recently got a job at a hospital as an intraoperative neurodiagnostic technician and I'm here refreshing my knowledge of Anatomy. I watched this series when I was deployed and finally got the chance to use it in the real world. Thank you, Crash Course.

    • @thegaspatthegateway
      @thegaspatthegateway 6 лет назад +14

      Adam Felibrico that's so cool! I've watched all the series but neuroscience fascinates me the most and I think it's my future

    • @XanderGouws
      @XanderGouws 5 лет назад +12

      How's your career going now?

    • @lindaw5695
      @lindaw5695 4 года назад +2

      are you from indian if yes my dad told me that a lot of you work as doctors!!

    • @sharmilairom2102
      @sharmilairom2102 4 года назад +4

      @@lindaw5695 Depends how old your dad is and where he is from. It's not that there are loads of doctors and nurses here. But essentially since after WWII it became too expensive and time consuming(at least 6 years before specialization) to train your own medical staff in the West. So Britian eg used its former colonies building the post war national health service on Indian doctors. You'll find most Western countries do similar things though that leads to a reaction often from former immigrants trying to limit immigration because who wants foreigners in their country. To relate this to the integumentary system immigration rules build the wall suspend green cards etc are like the skin barrier. Commercial product wipes out the indigenous homeostasis (pongy oils instead of becoming health care workers you train to be bankers and lawyers becuase there's more money in it for you) and then you need more product (selective immigration) to do the job of protecting your skin. Bit of a stretch but yeah there wold be a lot more doctors in India if they all came back home.

  • @regarozeve
    @regarozeve 8 лет назад +1197

    my 6 yr old loves u, and says she likes learning from u because "u sound like a funny guy who knows a lot of things" 😂

  • @1jireh
    @1jireh 5 лет назад +340

    i watched the whole thing then i realized i wasn’t paying attention the whole time 🤦‍♀️
    i need to rewatch it

  • @SGFrida
    @SGFrida 9 лет назад +960

    I'm glad I'm not the only one who draws cells with smiley faces.
    I love you Crash Course

    • @crashcourse
      @crashcourse  9 лет назад +112

      Way more fun that way.
      -Nicole

    • @mayseetraysee1893
      @mayseetraysee1893 9 лет назад +3

      CrashCourse yeah coz learning we have to add dumb shit to illustrations that has nothing to do with the subject.

    • @EliDavies
      @EliDavies 9 лет назад +19

      maysee traysee Well that was uplifting...

    • @thecoolestgeek2845
      @thecoolestgeek2845 9 лет назад +4

      Frida Sg Yeah I put smiley face to for the nucleus! : )

    • @EwwHandles
      @EwwHandles 9 лет назад +14

      +maysee traysee Here we have most likely a 15~ year old edge-meister who thinks being adult or smart means being objective and seeing things in black and white.

  • @maximilianoacevedo564
    @maximilianoacevedo564 8 лет назад +1324

    your videos are better than school

    • @rainaliu8865
      @rainaliu8865 8 лет назад +65

      anything is better than school

    • @juliakercsmar6587
      @juliakercsmar6587 7 лет назад +17

      my teacher makes us take notes of this videos every new unit and makes comments on where she wants us to write down some extra or where to leave out. so ya, crash course is pretty damn amazing.

    • @youneskasdi
      @youneskasdi 7 лет назад +2

      Dude i'm ready to read the same boring book for 24 h straight for not going to school for about 6 hours

    • @diegolorenzen2003
      @diegolorenzen2003 7 лет назад

      They are

    • @ebonyfluff2489
      @ebonyfluff2489 7 лет назад +23

      these videos are my school. I'm homeschooled

  • @kaswitzz
    @kaswitzz 8 лет назад +5183

    you deserve all my tuition fees

    • @abbypaige3518
      @abbypaige3518 5 лет назад +11

      @Johnny Lee I'll take that offer. HAHA

    • @ashleynoelle7429
      @ashleynoelle7429 5 лет назад +24

      icekrn yep, instructor at my school just used these and she was otherwise useless. Sorry not sorry.

    • @luzareizaga2141
      @luzareizaga2141 5 лет назад +13

      I can sum my bio 152 class into 10 crash course videos😭😭

    • @MyAulos
      @MyAulos 5 лет назад

      @Corleone what a jerk

    • @risktaker7996
      @risktaker7996 4 года назад +2

      Don't just say, do it.

  • @danieldavila6703
    @danieldavila6703 7 лет назад +159

    I love his english pronunciation, I'm practiciong english while I develop my english skills.
    I'm from Venezuela and I send Greetings for everyone.

  • @ButterflyScarlet
    @ButterflyScarlet 7 лет назад +478

    Hank: Imagine a spider walking on your knee
    Me: I would really rather not

  • @dannysulyma1259
    @dannysulyma1259 9 лет назад +35

    Hank, in these past few years you have matured into one of the greatest communicator's and educator's on You-tube. I watch out of interest and thirst for knowledge not for help with an education program as many do, so I can only image how highly valued these video's are with those who are. Though this great resource was not available for my children's generation , I find it comforting to know that you will be here for my Grandchildren Damon and Jasmine when they need you. Thank you and every one involved.

  • @stacystanton7993
    @stacystanton7993 8 лет назад +894

    Afferent = arriving. Efferent = exiting. You're welcome :-)

    • @laurenwhiteley5245
      @laurenwhiteley5245 7 лет назад +50

      YOU, my friend, are amazing. I've been trying to come up with something to remember those two for the past hour.

    • @maratmasry
      @maratmasry 7 лет назад +5

      Stacy Stanton you are so freaking awesome for that!!!!

    • @stacystanton7993
      @stacystanton7993 7 лет назад +46

      Can't take credit. I read it in on a nursing site. Nursing students use A LOT of mnemonics and cool tricks to memorize info.

    • @sarahvazquez7736
      @sarahvazquez7736 7 лет назад +5

      Bless you

    • @edwardmaximus5439
      @edwardmaximus5439 7 лет назад +4

      Stacy Stanton thank you!

  • @jenrobinson4462
    @jenrobinson4462 7 лет назад +201

    Just to let you know, I'm watching this nervous system series to brush up on my basics as I'm writing a lit review for publication about chemotherapy-induced peripheral neuropathy XD Just wanted to let you know while these videos are awesome for those in AP bio/high school/college, us professionals also very very much appreciate the fun animation and clear-cut explanations as a way to brush up on our basics before having to talk in depth about glial cells and astrocytes and such. Thank you, Hank and team!

  • @crashcourse
    @crashcourse  4 года назад +464

    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

    • @JDG-hq8gy
      @JDG-hq8gy 4 года назад +13

      Thankyou CrashCourse, very cool !!

    • @g.ganesh346
      @g.ganesh346 4 года назад +14

      Thank you sir I know little bite english but you speak English very awesome sir

  • @brianlu3098
    @brianlu3098 8 лет назад +1165

    You need to sell plushies of the cells

  • @mae4731
    @mae4731 8 лет назад +366

    does crashcourse offer any worksheets perhaps? these videos are extremely hopeful, but i'd love for them to have an accompanying test just to check if we retained all the information we were watching. that'd be rad.

    • @lordmasterization
      @lordmasterization 8 лет назад +95

      Make your own. By the time you are done you will have memorized it all.

    • @CSMDrillMaster
      @CSMDrillMaster 6 лет назад +34

      Quizlet helps alot!! They have worksheets/quizzes/ and flashcards tests that help!

    • @jennifergraham8287
      @jennifergraham8287 6 лет назад +2

      lordmasterization great idea...im definetly taking notes

    • @terraform7365
      @terraform7365 5 лет назад +1

      Noooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo

    • @Dan-YullC
      @Dan-YullC 4 года назад +2

      Just googled crash course's website to see if they had it, that would really help with retention. I love crash course.

  • @bogiemamma
    @bogiemamma 9 лет назад +21

    I don't know if you read these comments, but I cannot thank you enough for making these videos! I have an amazing AP professor, but I'm such a visual person that your videos help me to make sense of what she is teaching. ALSO, as a hard of hearing person, THANK YOU for providing accurate subtitles that follow your rate of speech (which I'm sure is not an easy thing to do).

  • @JD-rq3ur
    @JD-rq3ur 5 лет назад +225

    So basically all of the cells in our nervous system are adorable.

    • @lindaw5695
      @lindaw5695 4 года назад +1

      not really they are just wanting you to see the cell more clearly

    • @shijupaul3266
      @shijupaul3266 4 года назад +7

      @@lindaw5695 OMG PARTY POOPER

    • @barelybiology
      @barelybiology 4 года назад +3

      shiju paul lol ikr

    • @PringlesOriginal445
      @PringlesOriginal445 4 года назад +7

      SOOO CUTE IT WAS DISTRACTING LMAO

  • @Flush.103
    @Flush.103 6 лет назад +65

    Motor Output: The response that occurs when your Nervous System activates certain parts of your body.
    Key:
    (MC)”word”: if its behind the word then it means it branches from it
    “word”(MC):means is it’s the nervous system or (NS) that it may have branches.
    Central Nervous System(CNS):
    Brain and spinal cord.
    Main control center.
    Peripheral Nervous System(PNS):
    All the nerves that branch off from the brain and spine that allow your CNS to communicate with the rest of your body.
    Works in both directions (PNS)
    Sensory Division(SD):
    Picks up sensory stimuli.
    Motor Division(MD):
    Sends directions from your Brain to Muscles and Glands.
    (MD)Sematic Nervous System(SNS): voluntary
    rules skeletal muscle movement.
    (MD)Autonomic Nervous System(ANS): involuntary
    keeps your heart beating.
    (ANS)Sympathetic Nervous System:
    Mobilizes the body into action
    (ANS)parasympathetic:
    Relaxes the body
    Astrocytes (Nervous System):
    Exchanges materials between neurons and capillaries.
    Microglial Cells(MC):
    Immune defense against invading microorganisms.
    (MC)Satellite Cells:
    Surround and support Neuron cell bodies.
    (MC)Schwan Cells:
    Produce an insulating barrier called by Myelin Sheath.
    Crazy facts about neurons:
    1.They are the longest-lived cells in the human body.
    2.They are irreplaceable.
    3.They have huge appetites
    HERE ARE SOME NOTES IF YOU NEED THEM THE KEY MAY HELP YOU

  • @IloveSPIDERZ
    @IloveSPIDERZ 8 лет назад +4814

    Anybody else watching this the day before getting tested on it? lol

    • @tetetete.
      @tetetete. 7 лет назад +86

      I have a unit test on the nervous and endocrine system tomorrow, that's 120 pages and i havent started studying till now :)))))))

    • @laurenpaintz
      @laurenpaintz 6 лет назад +15

      sadly :(

    • @antuanlemon484
      @antuanlemon484 6 лет назад +138

      Y'all lucky I'm watching this thirty minutes before teaching it

    • @abdottawabkeraoui3238
      @abdottawabkeraoui3238 6 лет назад +28

      @@antuanlemon484 you won 😂😂😂😂

    • @marnellilapitan9319
      @marnellilapitan9319 6 лет назад +4

      lmao yup. got a test tomorrow

  • @XyZGamesAgar
    @XyZGamesAgar 9 лет назад +1144

    omg those cells are so cute
    you need to sell them as plushies
    im dying omg

    • @Maria-tt2wh
      @Maria-tt2wh 9 лет назад +5

      haha!so true!

    • @laurijokinen6120
      @laurijokinen6120 9 лет назад +5

      SELLING cells? THATS like SELLING livers ect right? they Both are made from something alive..

    • @laurijokinen6120
      @laurijokinen6120 9 лет назад +1

      +Andrew Hedge illegal i think

    • @Scerttle
      @Scerttle 9 лет назад +15

      TYT ☢ XYZ I too want cell plushies.

    • @chocolatez9042
      @chocolatez9042 9 лет назад

      I have one

  • @DanielSand0val
    @DanielSand0val 8 лет назад +78

    learned more in 10.5 minutes than I did in all my lectures covering this material at school, THANKS!

  • @BokuwaFdesu
    @BokuwaFdesu 9 лет назад +82

    First the nail through the foot, now a damn spider on my bare skin. Seriously Hank, it's like you're trying your hardest to make these examples as potent as possible.

    • @thevirtualjim
      @thevirtualjim 9 лет назад +12

      Potent examples help you to remember. :)

    • @gregmiller9710
      @gregmiller9710 9 лет назад +6

      they do get your attention better

    • @giznump1612
      @giznump1612 9 лет назад +5

      keep calm and... AAAAH SPIDER!!!!!!!!

  • @grapesoda3414
    @grapesoda3414 Год назад +3

    These videos are a perfect example of how learning things does not have to be boring. It's all in the way they are presented. I remember going over stuff like this in HS/college and it was all just facts. You make it all come to life ❤️

  • @JoshRo177
    @JoshRo177 Год назад +2

    Finally an adhd friendly learning style. I can undetstand this withouth my meds. Fast, fun, colorful and spontenous.

  • @AlexTheMary
    @AlexTheMary 9 лет назад +110

    Oh my gawsh! So many adorable little nerve cells! I might pass out from cuteness overload!😍😱😍

    • @IceMetalPunk
      @IceMetalPunk 9 лет назад +17

      I know! If only they were that adorable in real life. Actually, wait, no...that would mean each cell has a face, which means each cell is infinitely more complex than a single cell ought to be, which means AGH THE COMPLEXITY.

    • @Julianna.Domina
      @Julianna.Domina 9 лет назад

      Valar Morghulis The animated ones with the happy little faces.

    • @IceMetalPunk
      @IceMetalPunk 9 лет назад +3

      *****
      But your neurons would be happy, and that's all that matters :P

    • @queensaharaice7376
      @queensaharaice7376 9 лет назад

      +IceMetalPunk Lol ikr?

  • @GreenDog3
    @GreenDog3 7 лет назад +318

    Why do I go to school for 7 hours a day when I can watch these

    • @kalebramirez7327
      @kalebramirez7327 5 лет назад +6

      @@brianchao7354 because you wont commit to interrupt whatever you were doing to watch this every day

    • @jenmb2679
      @jenmb2679 5 лет назад +4

      Why go to school at all? Except for gym class and swimming. Textbooks are full of lies. I dont remember any of it anyways

    • @jenmb2679
      @jenmb2679 5 лет назад +5

      Actually my brain hurts. Gonna have to watch this 20 times

    • @ayushprakash7193
      @ayushprakash7193 4 года назад +1

      GreenDog yeah bro

  • @witchyfirbolg
    @witchyfirbolg 5 лет назад +11

    I'm so blessed to have such a good anatomy teacher at school, but these videos really help me put it all together visually in my head. Thank you so much for helping us struggling students out :')

  • @leiaj2306
    @leiaj2306 5 лет назад +8

    I wish my professor explained the topic in this manner. Very effective breakdown. Thanks for the effort always. Hands down the best channel for bio lessons!

  • @cowgirlsteph
    @cowgirlsteph 2 года назад +2

    I love that this was made in 2015 and I'm watching it for my college a&p course in 2022 - my professor literally posts these for us to watch.

  • @aest.hellar
    @aest.hellar 9 лет назад +231

    Great timing! I have a Nervous System test for Bio tomorrow!

    • @HolTomas
      @HolTomas 9 лет назад +4

      High five! me too!

    • @crashcourse
      @crashcourse  9 лет назад +23

      Livelify Tomas Hollan Woo! Good luck!
      -Nicole

    • @unappropadope
      @unappropadope 9 лет назад +3

      it seems like every video is the week after my test for every subject I have in common. unfortunate.

    • @andreandes7485
      @andreandes7485 9 лет назад +1

      I will take that test about 4-12 year from now.

    • @n-wordaficianado2990
      @n-wordaficianado2990 9 лет назад

      This was absolutely horrendous timing for me. I had a a test on the Nervous System for Physiology yesterday.

  • @Aspiringfossil
    @Aspiringfossil 7 лет назад +36

    Teacher of the year right here. Thank you so much, Crash Course, you guys are invaluable!

  • @MrDragonPig
    @MrDragonPig 9 лет назад +86

    OMG!! I'm so glad I subscribed!!

    • @crashcourse
      @crashcourse  9 лет назад +10

      Yay! We are too!
      -Nicole

    • @MrDragonPig
      @MrDragonPig 9 лет назад +5

      CrashCourse Yay! We're all happy WOOO! But seriously these videos are brilliant!

    • @shaterproofblosm
      @shaterproofblosm 9 лет назад +7

      Humans make me happy :) especially when they just wanna help each other being awesome.
      *clears throat* Yo Crashcorse the allmighty knowledge bringer!! Can you tell me what the artist's name is that has created what it is that music's at the end of your shows?
      I Really really really really like Really want to know, its such a light, productive, happy sound and yeap :p

    • @queensaharaice7376
      @queensaharaice7376 9 лет назад +1

      +CtpThinkalot Bannanas lol

    • @moha81192
      @moha81192 8 лет назад

      Reverse уour mеmoory lоss in 14 dayуs twitter.com/7b3c9fb14125d6cd5/status/804578733948444672 The Nеrvous System Paart 1 Crаsh Coursееee А Р 8

  • @joelguzman2590
    @joelguzman2590 4 года назад +8

    I have not been this engaged and excited about science since Bill Nye the science guy! Keep up the great work.

  • @michaelroy6630
    @michaelroy6630 5 лет назад +7

    I can't get over how well done this series is. Thank you for saving my bacon in school and making these subjects engaging and enjoyable!

  • @chelly3210
    @chelly3210 9 лет назад +137

    He was extra funny this episode.
    "There's no things!!! There's things..."
    "Go around screaming.... SPIDER!"

    • @anshul_m
      @anshul_m 9 лет назад +5

      +Chelsea Grise totally agree,
      and also the part where they say 'gah spider',
      body sways leg.

    • @davidhernandez6382
      @davidhernandez6382 5 лет назад

      no

    • @maidesu0111
      @maidesu0111 5 лет назад

      "scream when you saw the spider or remove it with dignity", my fave line haha

  • @rafasoto2168
    @rafasoto2168 8 лет назад +13

    All I want is a CrashCourse's class everyday in every subject! For anatomy I watched this channel is awesome

  • @AEther0238
    @AEther0238 9 лет назад +36

    How do they do their research so fast? I learn more here than I do in a month researching things on my own. It almost makes me self-concsious...

    • @bryanjohnson5327
      @bryanjohnson5327 7 лет назад +7

      Ethan McDonald they get help from an actual professor/teacher who already had the info/lectures so they just have to present it and make images

  • @Screaming_Toast
    @Screaming_Toast 4 года назад +29

    I have learned more in this 10 minutes than the entire year of school.

  • @praisefolorunsho6513
    @praisefolorunsho6513 5 лет назад

    seriously......what have been trying to understand for the past few days.......u explained it in a way i think i can never forget in my whole life.....THANK YOU.......

  • @aleynagore3653
    @aleynagore3653 7 лет назад +3

    as a psychology student, i can honestly say that it's really helpful, i've been watching your videos for a long time, and they've really worked

  • @tarawilson9076
    @tarawilson9076 8 лет назад +4

    This guy is hilarious! I feel so lost in my A&P class, then I watch these videos and all the sudden it makes sense! I actually enjoying learning about this when he is talking---My Proff. should take some notes

  • @adama7965
    @adama7965 8 лет назад +13

    That little leg shake at 3:18 was priceless, it absolutely made my day!

  • @thedovedynasty
    @thedovedynasty 5 лет назад +2

    Watching these as I finish up my prerequisites for med school!
    The history and literature videos helped me so much in high school, and these are helping me in the "real world" too!

  • @soorajsc46
    @soorajsc46 7 лет назад +1

    This is the best youtube channel ever
    Whenever I want to learn extra about something I go to Crash Course
    Please keep making videos for other subjects too!!!!!!!!!!!!

  • @CarmelMYT
    @CarmelMYT 9 лет назад +5

    Dang these videos have become even better at teaching biology, thank you!

  • @Mozuchii
    @Mozuchii 8 лет назад +667

    I got distracted by the cute neurones...

  • @anushreejagtap7
    @anushreejagtap7 8 лет назад +8

    I've been watching the biology videos this whole time. I feel so relieved they made these! MCAT studying made easier!

  • @zappamothers9205
    @zappamothers9205 7 лет назад +2

    Thanks so much to C.C. as my A&P teacher is beyond dull and almost useless as a college-level instructor. This guy is funny and "animated" and seems to "live" this material. His humor and clarity have helped me because I've had to, mostly, teach myself the A&P I'm doing this semester. A good teacher is a unique type of person, and I'd say this guy's got that "special something". Thank you from a struggling student. Warm Regards.

  • @courthebrave
    @courthebrave 5 лет назад +1

    I’m watching this to get to know my body better. I have fibromyalgia (overactive nerves). It helps to know how the system is supposed to work. Thank you for explaining in a way i can understand! Keep up the good work! 😊

  • @dukko99
    @dukko99 7 лет назад +621

    Hank is basically a scientific pewdiepie who doesn't swear. And yes, I meant that as a good thing.

    • @jinnygracy
      @jinnygracy 7 лет назад +16

      My thoughts exactly! Especially when I heard him 1:58-2:00 lol

    • @mucpougaming6092
      @mucpougaming6092 4 года назад +6

      not swearing is a bad thing tho.

    • @sonicmania6753
      @sonicmania6753 4 года назад +16

      He’s supposed to be family friendly that’s why

    • @lindaw5695
      @lindaw5695 4 года назад +1

      this is how you spell peweepie pewtiepie

    • @brendarojas5613
      @brendarojas5613 4 года назад +7

      @@mucpougaming6092 How

  • @reshaninaidoo6079
    @reshaninaidoo6079 7 лет назад +11

    you guys are helping me in a fun way to study for exams

  • @mariap.4223
    @mariap.4223 8 лет назад +4

    This was by far the most helpful and amazing sort course! I study psychology and this channel has helped a lot through exams and tests. Thank you so much and keep up the awesome work!

  • @abhilashrath8132
    @abhilashrath8132 2 года назад +1

    Finally got here. Searching a good biology yt channel for a long while now. You really fit my bill.

  • @ForeverFrogintheFog
    @ForeverFrogintheFog 2 месяца назад +1

    Here I am yet again using your knowledge for my Biospychology exam

  • @ThatMrTC
    @ThatMrTC 8 лет назад +4

    Just again, wow. You guys at crash course are awesome. Using this in my science class for an overview of the human organ systems and it's much appreciated.

  • @NoahTopper
    @NoahTopper 9 лет назад +4

    "There's no things! There's things..." That was just so amazing.

    • @queensaharaice7376
      @queensaharaice7376 9 лет назад

      Ikr? Why is this not massively popular on youtube yet?

  • @kelseyardis630
    @kelseyardis630 7 лет назад +3

    Thank you so much for making these videos! I am trying to get through nursing school. I am currently taking A&P and it is a lot of information to take in. Your videos help a lot. I'm more of a visual learner and all of your cartoon images help me understand a little more. Our lectures should consist of your videos. Lol. You're awesome! Keep doing what you're doing!

  • @TanaySinghal
    @TanaySinghal 6 лет назад +2

    This is a beautifully made video (graphics, script, and oral presentation) and covers an enormous amount of information in only 10 minutes. Excellent work!

  • @hamstersdailylife4938
    @hamstersdailylife4938 5 лет назад

    I'm a Japanese studying to become a pharmaceutical translator. This video helps a whole lot!
    It's really amazing every time seeing this man speak so fast so perfectly.

  • @nathannagle5926
    @nathannagle5926 8 лет назад +6

    thanks for making funny science videos it rlly helps me study and take notes.its better watching this than it is reading some boring thing my teacher gave me... so again this was very helpful thanks :)

  • @nabihanuha6196
    @nabihanuha6196 4 года назад +9

    The only educational videos I don't have to put at 1.5x speed

  • @MininduEkanayakeSLYSF
    @MininduEkanayakeSLYSF 8 лет назад +34

    You guys will keep making scientists! Just mind blowing! Hats off!

  • @venkateshhmudaliar7770
    @venkateshhmudaliar7770 6 лет назад

    MAN YOU DO A GREAT WORK SPREADING INFORMATION AND EDUCATION FOR FREE TO STUDENTS AND THOSE WHO ARE INTERESTED FOR FREE . YOU SHOULD BE no 1 SUBCRIBED CHANNEL .

  • @diegolorenzen2003
    @diegolorenzen2003 7 лет назад

    I did 4 pages of notes from this one 10 minute video, i learned more from this one video than i would in a 3 days of regular science class. Thanks Hank Green this helped me with notes I had to take for a science project

  • @therealbrappuccino
    @therealbrappuccino 9 лет назад +205

    "THERE'S...NO THINGS- there's things..."

  • @jsfamily193
    @jsfamily193 8 лет назад +14

    Omg I am so happy to have found this channel!!! You guys are a gift lol I was panicking over my Anatomy exam

  • @elliotjackson9570
    @elliotjackson9570 9 лет назад +5

    Loving this series so much, it's absolutely fascinating!

  • @XTheSpartanX7
    @XTheSpartanX7 7 лет назад +1

    Love your videos. I usually watch it at 0.75 speed because it is new information to me, but it is helping me stay consistent with my learning.

  • @gem.2122
    @gem.2122 7 лет назад +1

    I'm studying to be a masseuse and learning all about the anatomy. The module information I have is lots of written work and a little overwhelming! Your videos are a huge help to me. You break down the key facts into more bite size info! Thank you! :D :D I can now actually process this!

  • @gandalfthegrey2171
    @gandalfthegrey2171 9 лет назад +16

    Sympathetic: Fight or Flight, Parasympathetic: Rest and Digest :)

    • @queensaharaice7376
      @queensaharaice7376 9 лет назад

      Nice...wait was that a Standard Deviants reference...if not that's basically what they said.

  • @schrodingerscat4994
    @schrodingerscat4994 7 лет назад +195

    You can't overCELL the importance of the nervous system.
    Okay, I'll go away

    • @barelybiology
      @barelybiology 4 года назад +1

      Freyjaa Singh Kirti lol i was about to see the cool reply, but then i saw ur reply lol

    • @schrodingerscat4994
      @schrodingerscat4994 4 года назад +1

      Freyjaa Singh Kirti haha appreciate it!

    • @WilliamCooper2005
      @WilliamCooper2005 4 года назад +1

      Yes, but actually no, because you are simultaneously gone and still here. How would we know?

    • @zainabx2127
      @zainabx2127 4 года назад +1

      Ik this is 2 years old BUT I THOUGHT THE SAME THING HAHAHAH

  • @jadeenalen3320
    @jadeenalen3320 5 лет назад +2

    Almost 5 years later and this is still incredibly helpful - love crash course

  • @arshia5916
    @arshia5916 5 лет назад +1

    Crash course coming to our rescue once again

  • @joycesims3782
    @joycesims3782 7 лет назад

    This is the best site for learning A&P and understanding exactly how the different systems interrelate. This guy is so much fun to listen too!

  • @tatendamahaka4522
    @tatendamahaka4522 8 лет назад +33

    I'm sorry but did anyone else laugh so hard when he said "there's things" 0:57

    • @123nadeemuu
      @123nadeemuu 8 лет назад

      Tatenda Mahaka i didnt u derstand oh gid

  • @notebook8782
    @notebook8782 Год назад +3

    Thank you soo much ! helped me a lot. This 10 minutes helped me than a 5hr lecture!!

  • @HamzaElkhatib
    @HamzaElkhatib 7 лет назад +5

    0:38 I'll make sure I'll remember that for the test tomorrow

  • @abdullatif9108
    @abdullatif9108 7 лет назад +1

    I love the way you guys sum up everything in these short videos and still cover most important things. I am just learning from your videos and also noting down on my notes. Can you guys post the script in text-form so that we can follow the same topics for writing. thanks in advance

  • @VillaDish
    @VillaDish 4 года назад

    This channel has elped me in so many ways, with exams projects or even just to be etrentained, but especially the courses "anatomy & physiology" and "history" this two channels are the best

  • @revolver265
    @revolver265 5 лет назад +44

    Who else is watching this because their teacher just gives out handouts instead of answering questions, lecturing, and creating good PowerPoints in order to help us properly learn the course material?
    I have a sneaking suspicion it's more than just me.

  • @SpazzyMcGee1337
    @SpazzyMcGee1337 9 лет назад +7

    Learning is so much funner when everything has a stupidly cute grin. :D

  • @milad.nikzad
    @milad.nikzad 9 лет назад +19

    Dear Crash Course,
    Will you ever do a geometry series?

    • @IceMetalPunk
      @IceMetalPunk 9 лет назад +5

      CrashCourse hasn't really ever done mathematics courses...but I suppose there's a first time for everything.

    • @joshbobst1629
      @joshbobst1629 9 лет назад +13

      Or mathematics generally? I want the Crash Course spin on algebra.

  • @maxpower7916
    @maxpower7916 7 лет назад

    Just stumbled over this channel - on first glance it seems AMAZING! This is why i love the Internet - Thank you!

  • @bryanwhite3021
    @bryanwhite3021 7 лет назад

    i hope we can all be as happy as the astrocyte!
    was here for my a&p tests, now im back years later as my hesi exam is tomorrow for nursing school

  • @pigcatapult
    @pigcatapult 9 лет назад +679

    I feel like this video is highly biased. Of course the brain would say it's the most important organ. :P

    • @crashcourse
      @crashcourse  9 лет назад +129

      It's very sneaky and self-important like that.
      -Nicole

    • @Svakalegt
      @Svakalegt 9 лет назад +8

      Yeah, screw the brain, what would you do without your sweet sweet fingers!?

    • @shaterproofblosm
      @shaterproofblosm 9 лет назад +5

      Svakalegt Or toes, apparently once having a toe some how leave your body it is Really hard to get used to it with all sorts of balance issues or so I've heard.

    • @darshanshah378
      @darshanshah378 9 лет назад +2

      But without the brain, none of these would do anything

    • @japanlovely8177
      @japanlovely8177 9 лет назад +2

      Darshan Shah my brain was opened

  • @nipunverma8684
    @nipunverma8684 5 лет назад +3

    At 7:37 the graphical representation for unipolar is kind of incorrect because the one you are showing is called a "pseudo unipolar neuron" commonly found in dorsal root ganglion which has a axon and a dendron appearing extension

  • @fatimaashfaq6325
    @fatimaashfaq6325 7 лет назад +93

    "Hey hand part, how bout you do something bout the spider" LMAO

  • @Streeeeeeeeeee
    @Streeeeeeeeeee 4 года назад

    I watched your videos on philosophy back in 2017, and man you still have my heart!

  • @kylabree6211
    @kylabree6211 4 года назад

    This video is pure gold. You made my professor’s complex and hard description of the nervous system so easy to understand. thank you!

  • @SparksNZeros
    @SparksNZeros 9 лет назад +138

    the spider looked so cutesy :D

    • @crashcourse
      @crashcourse  9 лет назад +28

      Nothing to be afraid of here! Just your friendly, adorable, neighborhood Thought Café animated spider.
      -Nicole

    • @SparksNZeros
      @SparksNZeros 9 лет назад +8

      he needs to be a more regular feature, spiders are so misunderstood! Unlike wasps, wasps are super meanies :S

    • @5nefarious
      @5nefarious 9 лет назад +2

      No. Just... no. Kinetic bombardment from orbit is the only solution.

    • @IceMetalPunk
      @IceMetalPunk 9 лет назад

      lowelife101
      Man, I hate wasp. #SourcefedNerdCrossreference

    • @Zeekar
      @Zeekar 9 лет назад +9

      That was actually a really good artistic representation of a jumping spider.
      They're harmless (not significantly venomous) and only bite if you make them. Better yet, a few species are super-curious and will actively explore you. Really fascinating stuff.

  • @wisniecheri
    @wisniecheri 6 лет назад +6

    Omg!! Thank you . You make it so easy to study ❤️❤️❤️❤️

  • @stellarfirefly
    @stellarfirefly 9 лет назад +5

    +1 to ThoughtCafe for the, umm... dangling... animation at the mention of "glands".

  • @jadaho2619
    @jadaho2619 6 лет назад +1

    I wish I could work for you guys!! I love crash course. It helps me learn new things, and stay brushed up on the old. Thank you for all that you do!