GCSE Biology - How the Eye Works (Part 2)

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

Рет қаралды 255,865

4 жыл бұрын

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: 144

@minaalwaseem3976 4 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 28 күн бұрын

Same😅

@pissboy1867 23 күн бұрын

same

@henryhsil8630 3 жыл бұрын

May this platform grow fast

@0Delluxe 3 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 3 жыл бұрын

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

@yassinyoussef4653 3 жыл бұрын

I 100% agree

@realsm3xyknight186 8 ай бұрын

@@yassinyoussef4653nahh bro 10000%

@user-bq1rj8vy9g 7 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 Ай бұрын

thank you

@sunghoonsbiceps2287 4 жыл бұрын

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

@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 2 жыл бұрын

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

@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 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 Жыл бұрын

@@erxinyiq4649 sorry

@lauraviner1348 5 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_ 28 күн бұрын

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

@0Delluxe 3 жыл бұрын

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

@achoo3001 3 жыл бұрын

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

@ramlan8581 2 жыл бұрын

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

@yusefmaroffi8802 4 жыл бұрын

THANK YOU SIR REALLY HELPFUL.

@nerd_yboi8771 4 жыл бұрын

Eye can see your success in education! ;D

@Cognitoedu 4 жыл бұрын

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

@nerd_yboi8771 4 жыл бұрын

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

@haadyabdul1683 2 жыл бұрын

Nice 1

@abiramims6920 2 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 2 жыл бұрын

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

@afsheenaijaz278 Жыл бұрын

Have my igcse in 2 days! Wish me luck

@user-ri1cq1ik9l Ай бұрын

Thank u daddy cognito ❤❤

@dylanp7817 4 жыл бұрын

man I love my biology lessons

@cameron36839 3 жыл бұрын

hello your helping me with my biology exam cheers lad

@wizardom 3 жыл бұрын

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

@ayo2015 3 жыл бұрын

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

@mizginalgul8244 2 жыл бұрын

Thank you for helping me revise for my science test

@TVleap 28 күн бұрын

EXAM IN AN HOUR AND A HALF LETS GO

@Conquerer777Tanzi 7 ай бұрын

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

@victoriaelishi2007 Жыл бұрын

This channel makes explanation easy

@samisamis1521 2 жыл бұрын

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

@Raffsterraf 3 жыл бұрын

So helpful thank you!!

@julip_bear8408 2 жыл бұрын

My gcse is in 2 days, thank you!

@darthyoda4934 Жыл бұрын

Bit late but what did you get?

@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.

@yusramahmood3702 8 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.

@Dave-yi6be 2 жыл бұрын

this is the best explained video on eyes . THANKSS

@saroshnaveed3880 2 жыл бұрын

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

@janelsamuels8411 3 жыл бұрын

Thank you sir, this is helpful. Thank you

@emilyzheng7559 Жыл бұрын

great video;) Thanks for your help!

@freyadcoding8244 11 ай бұрын

thank you so much amadeus and tom!

@Cognitoedu 2 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

@moterstorm Жыл бұрын

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

@WSDTY1 2 жыл бұрын

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

@Cognitoedu 2 жыл бұрын

Glad we could help, best of luck! 🤞

@ZOE-zo3wj 3 жыл бұрын

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

@Cognitoedu 3 жыл бұрын

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

@65.23 3 жыл бұрын

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

@garykillen3130 4 жыл бұрын

really useful, thankyou

@siyasingh7597 10 ай бұрын

COGNITO YOU ARE THE GOAT You are truly GOD SENT

@kubahabet6155 4 жыл бұрын

Thank you very much.😁

@owethusithole2739 4 жыл бұрын

Thanks. Mad helpful

@user-wu4zj3jp2u 9 ай бұрын

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

@areebakhalid5499 3 жыл бұрын

best educational platform ever it is the best for all levels

@Cognitoedu 3 жыл бұрын

🤩🤩 thanks Areeba!

@Tentsumi 4 жыл бұрын

whats up fellow students

@GeriEt 4 жыл бұрын

BossAnime 😂😂 Watch the video man

@6.jn188 4 жыл бұрын

shutup

@miccelaneous7166 3 жыл бұрын

Sup bro

@bethcollins9728 3 жыл бұрын

@abdallahaliotta801 3 жыл бұрын

Ei socio stai bene ?

@user-sm9tc3pj4f Жыл бұрын

Thank you so much for helping us alot

@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 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 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 4 ай бұрын

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

@akaa2007 3 жыл бұрын

THANK YOU SO MUCHHHHH

@sharafmzaman7412 3 жыл бұрын

Best channel on youtube

@lainaameya858 3 жыл бұрын

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

@Cognitoedu 2 жыл бұрын

Awesome, great to hear they're effective 🙌

@damilolaiyiola8021 Жыл бұрын

you have thought me a lot thank you

@baburlu Жыл бұрын

loove broo... thanks a bunch :)

@hannahmasawi2820 2 жыл бұрын

thank you so much

@nowshinnawalkhan 4 жыл бұрын

Please make a video on reflex action and synapses.

@Cognitoedu 4 жыл бұрын

Hey we actually have a video on this! kzfaq.info/get/bejne/fs-li8mT3LSoaac.html

@Jadathedjaja 28 күн бұрын

If cognito has no fans im dead

@sarahincredable 8 ай бұрын

Helped 😮 alot

@hannairfan 9 ай бұрын

Cant thank u enough 👏👏👏🙌🙌

@noonfemerod6738 3 жыл бұрын

Very good

@kaisatou1145 2 жыл бұрын

Tysm I appreciate this so much T_T

@towbetow5925 3 жыл бұрын

Make sure ur watching the vid

@joannafernando2925 Жыл бұрын

I have my GCSE’s Tomorrow wish me luck😭

@tezawr3963 2 жыл бұрын

Thanks

@iqraubaid6751 4 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 4 ай бұрын

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

@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

@Ottotinne 4 жыл бұрын

Can you make a video about Human teeth? :)

@mahmudurrahman2215 3 жыл бұрын

Not in GCSE bio so idk

@miccelaneous7166 3 жыл бұрын

IHAVE A TEST AAAAHHHHH!!

@aryans9334 3 жыл бұрын

how was the test?

@miccelaneous7166 3 жыл бұрын

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

@nafisashakilsara1514 Жыл бұрын

i love the chickens here

@lorcanryan3003 3 жыл бұрын

pretty stunning and brave

@missuknown1932 2 жыл бұрын

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

@mysticwillows8233 Жыл бұрын

What exam board is this for?

@freyadcoding8244 11 ай бұрын

GCSE

@adityavohra7935 5 ай бұрын

what a GOAT

@fuller7919 3 жыл бұрын

anyone else panickedly cramming for national tests?

@jiujustfell 27 күн бұрын

ha! so it ISNT because of the phone!!

@towbetow5925 3 жыл бұрын

Hi u guys

@towbetow5925 3 жыл бұрын

Online school is so dead

@ethanwaldron3747 3 жыл бұрын

so basically i need glasses cause my eye muscles are weak

@brittanyfearon7227 3 жыл бұрын

Here caz of class

@kaladharyadhav7697 4 жыл бұрын

Jai Telangana state in India

@molebogengnokubonga3716 Ай 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.❤