GCSE Biology - How the Eye Works (Part 2) - Accommodation #32

This video covers:
- How the eye focusses light onto the retina, which is known as accommodation
- How the ciliary muscles and suspensory ligaments work
Exam board specific info:
AQA - Separate science only
IGCSE Edexcel - Separate science only
Edexcel - Separate science only
OCR 21st Century - Separate science only
OCR Gateway - Separate science only
GCSE Chemistry playlist:
• GCSE Chemistry - Atoms...
GCSE Biology Playlist:
• Video
GCSE Physics Playlist:
• Video

Пікірлер: 145

  • @minaalwaseem3976
    @minaalwaseem39764 ай бұрын

    i was waiting for the "anyway... that's it for today. Hope you enjoyed and i'll see you in the next one"

  • @chandupamadealwis4098

    @chandupamadealwis4098

    29 күн бұрын

    Same😅

  • @pissboy1867

    @pissboy1867

    24 күн бұрын

    same

  • @henryhsil8630
    @henryhsil86303 жыл бұрын

    May this platform grow fast

  • @0Delluxe
    @0Delluxe3 жыл бұрын

    I want to thank you sincerely for ALL THE HARDWORK for the great drawing,effects, especially how amazingly all is understandable in chronological way which makes it more easier to understand.God bless you with all great things in life and AFTER LIFE ✨❤️

  • @Cognitoedu

    @Cognitoedu

    3 жыл бұрын

    Aaah thank you so much 🤩🤩 we really appreciate it 😊

  • @yassinyoussef4653

    @yassinyoussef4653

    3 жыл бұрын

    I 100% agree

  • @realsm3xyknight186

    @realsm3xyknight186

    8 ай бұрын

    ​​@@yassinyoussef4653nahh bro 10000%

  • @achoo3001
    @achoo30013 жыл бұрын

    this channel is so underrated, thanks sm!!!!

  • @0Delluxe
    @0Delluxe3 жыл бұрын

    Please keep on going you truly are the savior and the hero of our depressed students thanks again :)

  • @sunghoonsbiceps2287
    @sunghoonsbiceps22874 жыл бұрын

    sir u have just made the life of my online-schooled med student ass easier. thank you so much 😭

  • @yasminibrahim7830

    @yasminibrahim7830

    2 жыл бұрын

    wait youre a med student and learn this? how come im learning this in y last year of high school

  • @aymanrahim7334

    @aymanrahim7334

    2 жыл бұрын

    I am in my last year of middle school and studying this 😭

  • @shaaravguha3760

    @shaaravguha3760

    2 жыл бұрын

    @@yasminibrahim7830 First year of uni usually goes over the basics incase people didn't learn something in their lower education. This is probably one of those cases...

  • @yasminibrahim3276

    @yasminibrahim3276

    Жыл бұрын

    @@erxinyiq4649 bro I’m in uni too I was just trying to understand I didn’t write my comment for your approvement

  • @yasminibrahim3276

    @yasminibrahim3276

    Жыл бұрын

    @@erxinyiq4649 sorry

  • @yusefmaroffi8802
    @yusefmaroffi88024 жыл бұрын

    THANK YOU SIR REALLY HELPFUL.

  • @nerd_yboi8771
    @nerd_yboi87714 жыл бұрын

    Eye can see your success in education! ;D

  • @Cognitoedu

    @Cognitoedu

    4 жыл бұрын

    You can be this week’s pun master... 2 weeks late 🤦‍♂️

  • @nerd_yboi8771

    @nerd_yboi8771

    4 жыл бұрын

    @@Cognitoedu Thank you good sir. I am now fully satisfied.

  • @haadyabdul1683

    @haadyabdul1683

    2 жыл бұрын

    Nice 1

  • @afsheenaijaz278
    @afsheenaijaz278 Жыл бұрын

    Have my igcse in 2 days! Wish me luck

  • @ramlan8581
    @ramlan85812 жыл бұрын

    I legit have a bio test tomorrow and this helps a lot, hopefully I remember it tomorrow...

  • @user-ri1cq1ik9l
    @user-ri1cq1ik9lАй бұрын

    Thank u daddy cognito ❤❤

  • @cameron36839
    @cameron368393 жыл бұрын

    hello your helping me with my biology exam cheers lad

  • @dylanp7817
    @dylanp78174 жыл бұрын

    man I love my biology lessons

  • @abiramims6920
    @abiramims69202 жыл бұрын

    i just really wanna thanks from my heart. I watch the videos topic vise and try to answer the topic questions which is given your website and then try to answer past papers. i really appreciate your hard work in segregating the questions topic vise and the videos for each chapter.

  • @Cognitoedu

    @Cognitoedu

    2 жыл бұрын

    Thanks Abirami, you're very welcome! we really appreciate your comments 🤩

  • @mizginalgul8244
    @mizginalgul82442 жыл бұрын

    Thank you for helping me revise for my science test

  • @Raffsterraf
    @Raffsterraf3 жыл бұрын

    So helpful thank you!!

  • @ayo2015
    @ayo20153 жыл бұрын

    This video made it so much easier to understand. Thank you!

  • @wizardom
    @wizardom3 жыл бұрын

    The clearest explanation I've been able to find, by far!

  • @user-bq1rj8vy9g
    @user-bq1rj8vy9g7 ай бұрын

    Easy way to remember if you are struggling to understand: - NEARBY: Suspensory ligaments SLACKENS - Cilary muscles CONTRACT (remember it as SS and CC) However, when you think about it for far objects, you can just think of the opposite. (Suspensory ligaments taut, cilary muslces relax) Hope thats helps!!🎉🎉

  • @kanan.4956

    @kanan.4956

    Ай бұрын

    thank you

  • @samisamis1521
    @samisamis15212 жыл бұрын

    1:52 eye don't think fat-shaming is very nice 😂

  • @julip_bear8408
    @julip_bear84082 жыл бұрын

    My gcse is in 2 days, thank you!

  • @darthyoda4934

    @darthyoda4934

    Жыл бұрын

    Bit late but what did you get?

  • @julip_bear8408

    @julip_bear8408

    Жыл бұрын

    @@darthyoda4934 I got all A’s! If you’re doing your GCSE’s and do sciences these videos are literally the best.

  • @Conquerer777Tanzi
    @Conquerer777Tanzi7 ай бұрын

    I have a bio xm. And everytime i have an xm I rewatch these videos to freshen up my mind!

  • @victoriaelishi2007
    @victoriaelishi2007 Жыл бұрын

    This channel makes explanation easy

  • @saroshnaveed3880
    @saroshnaveed38802 жыл бұрын

    i love ur videos. thank u. these rlly help alot !!!

  • @TVleap
    @TVleap29 күн бұрын

    EXAM IN AN HOUR AND A HALF LETS GO

  • @emilyzheng7559
    @emilyzheng7559 Жыл бұрын

    great video;) Thanks for your help!

  • @65.23
    @65.233 жыл бұрын

    Thankyou so much!!!!!!!!!! SUPER HELPFUL

  • @Dave-yi6be
    @Dave-yi6be2 жыл бұрын

    this is the best explained video on eyes . THANKSS

  • @areebakhalid5499
    @areebakhalid54993 жыл бұрын

    best educational platform ever it is the best for all levels

  • @Cognitoedu

    @Cognitoedu

    3 жыл бұрын

    🤩🤩 thanks Areeba!

  • @moterstorm
    @moterstorm Жыл бұрын

    this didnt even come up in the exam but learned it anyway cuz this vidfeo

  • @freyadcoding8244
    @freyadcoding824411 ай бұрын

    thank you so much amadeus and tom!

  • @janelsamuels8411
    @janelsamuels84113 жыл бұрын

    Thank you sir, this is helpful. Thank you

  • @sharafmzaman7412
    @sharafmzaman74123 жыл бұрын

    Best channel on youtube

  • @Cognitoedu
    @Cognitoedu2 жыл бұрын

    If you’d like to practise what's covered in this video, check out the lesson on the Cognito platform - cognitoedu.org/coursesubtopic/b2-gcse-aqa-h-t_4.14. The platform’s totally free, and has been built to make learning and revision as easy as possible. The main features are: - Lessons organised by topic, only the lessons relevant to your specific exam board and tier are shown. - Automatic progress tracking. Progress bars tell you what you’re doing well at, and what you need to spend some time on. - Practise quizzes so you can test your knowledge. You can quiz yourself on any combination of topics you like. - A huge number of fully-hinted questions that take you step-by-step through some of the trickiest calculations & concepts. - A comprehensive bank of past exam papers, organised both by year, and also by topic. Amadeus & Tom

  • @garykillen3130
    @garykillen31304 жыл бұрын

    really useful, thankyou

  • @owethusithole2739
    @owethusithole27394 жыл бұрын

    Thanks. Mad helpful

  • @kubahabet6155
    @kubahabet61554 жыл бұрын

    Thank you very much.😁

  • @lauraviner1348
    @lauraviner13486 ай бұрын

    Ophthalmologist here. If the eye is long- or short-sighted, it’s not always the lens’s fault. Short sighted people often have longer eyeballs, so the focus falls short of the retina. Long sighted people often have small eyes, so their focus overshoots the eyeball. It can also be the fault of the cornea, which can be too flat or too curved

  • @JR_24_

    @JR_24_

    Ай бұрын

    pal i've got my gcse tomorrow dont confuse me more

  • @yurrr552

    @yurrr552

    Күн бұрын

    @@JR_24_for the sake of gsce, just listen to the video

  • @akaa2007
    @akaa20073 жыл бұрын

    THANK YOU SO MUCHHHHH

  • @lainaameya858
    @lainaameya8583 жыл бұрын

    I could watch your videos and write my exams without even consulting my books

  • @Cognitoedu

    @Cognitoedu

    2 жыл бұрын

    Awesome, great to hear they're effective 🙌

  • @ZOE-zo3wj
    @ZOE-zo3wj3 жыл бұрын

    these videos are epic, thank u so much for helping me!

  • @Cognitoedu

    @Cognitoedu

    3 жыл бұрын

    Thanks Z O E, really glad you're enjoying them

  • @WSDTY1
    @WSDTY12 жыл бұрын

    You help me so much, the evening before my mock❤️❤️

  • @Cognitoedu

    @Cognitoedu

    2 жыл бұрын

    Glad we could help, best of luck! 🤞

  • @user-sm9tc3pj4f
    @user-sm9tc3pj4f Жыл бұрын

    Thank you so much for helping us alot

  • @siyasingh7597
    @siyasingh759710 ай бұрын

    COGNITO YOU ARE THE GOAT You are truly GOD SENT

  • @baburlu
    @baburlu Жыл бұрын

    loove broo... thanks a bunch :)

  • @damilolaiyiola8021
    @damilolaiyiola8021 Жыл бұрын

    you have thought me a lot thank you

  • @lukebrice2040
    @lukebrice2040 Жыл бұрын

    Hey cognito! Although I am not particularly sure, aren't the diagrams at 5:40 the wrong way round? I would imagine that the relative lens of a long-sighted person would be significantly less fat than the diagram illustrates, considering that the inability to view close objects is derived from having a less elastic lens(thinner).

  • @excaliber2845

    @excaliber2845

    Жыл бұрын

    of you look at the face of the lens, it is flat on the long sighten one, but yes it should be thin

  • @maths764

    @maths764

    10 ай бұрын

    I think that it's meant to show how the lens is trying to becomes fat (or thin for short sightedness), but it's just not enough

  • @minaalwaseem3976

    @minaalwaseem3976

    4 ай бұрын

    that's exactly what I was thinking so I came to the comments

  • @hannahmasawi2820
    @hannahmasawi28202 жыл бұрын

    thank you so much

  • @sarahincredable
    @sarahincredable8 ай бұрын

    Helped 😮 alot

  • @yusramahmood3702
    @yusramahmood37028 ай бұрын

    From a medical student perspective, you have the best video on eye correlating both anatomy and physiology at the same time, and the best part of your video is animation because eye physiology is something best understood by visualisation. I encourage you to start making videos of physiological concepts for medschool.

  • @user-wu4zj3jp2u
    @user-wu4zj3jp2u9 ай бұрын

    Crazzy showing the front perspective was very effective. i finally understood this whole contraction thing. Thanks a lot

  • @hannairfan
    @hannairfan9 ай бұрын

    Cant thank u enough 👏👏👏🙌🙌

  • @nowshinnawalkhan
    @nowshinnawalkhan4 жыл бұрын

    Please make a video on reflex action and synapses.

  • @Cognitoedu

    @Cognitoedu

    4 жыл бұрын

    Hey we actually have a video on this! kzread.info/dash/bejne/ep2pusibp7GqadY.html

  • @kaisatou1145
    @kaisatou11452 жыл бұрын

    Tysm I appreciate this so much T_T

  • @noonfemerod6738
    @noonfemerod67383 жыл бұрын

    Very good

  • @Jadathedjaja
    @Jadathedjaja29 күн бұрын

    If cognito has no fans im dead

  • @iqraubaid6751
    @iqraubaid67515 ай бұрын

    Thanks .I was able to understand but in the part of longsightedness and shortsightedness you didn't include any thing related to size of eyeball which i was searching for, i am really confused right now whether it is size of eyeball or the lens or both causing myopia and hyperopia.? Anyone knows please tell me .

  • @firecat7037

    @firecat7037

    4 ай бұрын

    myopia/hyperopia is caused by a refractive error in the cornea

  • @myyoutubeaccount80395

    @myyoutubeaccount80395

    2 ай бұрын

    Hyperopia is due to a short eyeball or weak lens,myopia is due to a too strong lens or a eyeball which is too long

  • @joannafernando2925
    @joannafernando2925 Жыл бұрын

    I have my GCSE’s Tomorrow wish me luck😭

  • @miccelaneous7166
    @miccelaneous71663 жыл бұрын

    IHAVE A TEST AAAAHHHHH!!

  • @aryans9334

    @aryans9334

    3 жыл бұрын

    how was the test?

  • @miccelaneous7166

    @miccelaneous7166

    3 жыл бұрын

    @@aryans9334 not that bad honestly it was like 5 monts ago im over it already hahahha

  • @tezawr3963
    @tezawr39632 жыл бұрын

    Thanks

  • @nafisashakilsara1514
    @nafisashakilsara1514 Жыл бұрын

    i love the chickens here

  • @Tentsumi
    @Tentsumi4 жыл бұрын

    whats up fellow students

  • @GeriEt

    @GeriEt

    4 жыл бұрын

    BossAnime 😂😂 Watch the video man

  • @6.jn188

    @6.jn188

    4 жыл бұрын

    shutup

  • @miccelaneous7166

    @miccelaneous7166

    3 жыл бұрын

    Sup bro

  • @bethcollins9728

    @bethcollins9728

    3 жыл бұрын

    yo

  • @abdallahaliotta801

    @abdallahaliotta801

    3 жыл бұрын

    Ei socio stai bene ?

  • @Ottotinne
    @Ottotinne4 жыл бұрын

    Can you make a video about Human teeth? :)

  • @mahmudurrahman2215

    @mahmudurrahman2215

    3 жыл бұрын

    Not in GCSE bio so idk

  • @towbetow5925
    @towbetow59253 жыл бұрын

    Make sure ur watching the vid

  • @mysticwillows8233
    @mysticwillows8233 Жыл бұрын

    What exam board is this for?

  • @freyadcoding8244

    @freyadcoding8244

    11 ай бұрын

    GCSE

  • @lorcanryan3003
    @lorcanryan30033 жыл бұрын

    pretty stunning and brave

  • @adityavohra7935
    @adityavohra79355 ай бұрын

    what a GOAT

  • @missuknown1932
    @missuknown19322 жыл бұрын

    6:03 don't concave lens refract light inwards?

  • @towbetow5925
    @towbetow59253 жыл бұрын

    Hi u guys

  • @brittanyfearon7227
    @brittanyfearon72273 жыл бұрын

    Here caz of class

  • @kaladharyadhav7697
    @kaladharyadhav76974 жыл бұрын

    Jai Telangana state in India

  • @fuller7919
    @fuller79193 жыл бұрын

    anyone else panickedly cramming for national tests?

  • @jiujustfell
    @jiujustfell28 күн бұрын

    ha! so it ISNT because of the phone!!

  • @molebogengnokubonga3716
    @molebogengnokubonga3716Ай бұрын

    Uhmmm sorry but I think there has been a problem. I think you made a mistake on the first part of the video. The reflection of the light can't be parallel to the fovea instead the yellow spot to see a clearer image.❤

  • @ethanwaldron3747
    @ethanwaldron37473 жыл бұрын

    so basically i need glasses cause my eye muscles are weak

  • @towbetow5925
    @towbetow59253 жыл бұрын

    Online school is so dead

  • @SyaafiAbuSyahmi
    @SyaafiAbuSyahmi23 күн бұрын

    Eye.

  • @zoes8785
    @zoes87853 жыл бұрын

    algorithm

  • @sarvampatel6125
    @sarvampatel6125 Жыл бұрын

    bio paper 2 in 1 hour gl everyone revising

  • @anzarv
    @anzarv2 жыл бұрын

    Anyone else feel like this video is a personal attack because they have short sightedness 🤕

  • @gorusagul

    @gorusagul

    2 жыл бұрын

    i dont feel like its an attack, just finally know why i cant see properly lol

  • @Ellie-cn4hv
    @Ellie-cn4hv3 жыл бұрын

    only here coz of scool

  • @orlydenison8928
    @orlydenison89283 жыл бұрын

    POV: your here for a school project

  • @user-te7pd8zn9r
    @user-te7pd8zn9r7 ай бұрын

    thank you so much