Human ear - structure & working | Sound | Physics | Khan Academy

Sir why the cochlea needs to transform the sound to electrical energy??

Vey nice sir, please explain larynx also...I am not getting the video

The cochlea isn't as mysterious as once thought. The longer wavelengths travel a longer distance through the cochlea spiral. Shorter wavelengths travel a shorter distance due to attenuation and dissipation of energy in the fluid.

Longer wavelengths, therefore, stimulate more of the cells in the cochlea at the same time. The shorter wavelengths are attenuated as they travel through the fluid in the spiral, so they don't travel as far. Depending on the wavelength, a pattern of nerve cells in the cochlea are stimulated simultaneously. So, a specific frequency will cause specific nerve cells to be activated but not others due to the space between pressure waves.

Pretty simple. :)

P.S. I presume AI systems will one day use a similar system for spatial and temporal discrimination of sound sources inside robots, rather than simply using pressure transducers. It's a much simpler method rather than requiring an array of microphones, using phase differences to discriminate between the direction of the incoming wave.

good

قال الله عز وجل : ( سَنُرِيهِمْ آيَاتِنَا فِي الْآفَاقِ وَفِي أَنْفُسِهِمْ حَتَّى يَتَبَيَّنَ لَهُمْ أَنَّهُ الْحَقُّ ) فصلت/ 53.
سبحان الله العظيم الحمد لله ان هذا مذكور عندنا منذ ١٤٠٠ عام

Thanku sir love from india

Thanks❤

Thanks sir I learnt a lot ❤

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Beyond words really how much god giving us we are miracles actually when we realize this miracles start to happen to us

Beautiful👏👏👏

Excellent excellent excellent 👍👌👌👌👌👌👌👌👌👌👌👌👌👌👌👌👌👌👌👌👌👌👌👌👌

This is amazing

It's a good idea of teaching

Such an excellent explaination ...Amazing love itt❤ thanks sir

Thank you. You so much helped me about to understand these. Respectfully from Türkiye, grade 11

I think perhaps you have explained what the pinna does incorrectly, as it is not intended to collect sounds, but to induce binaural information so that we can perceive up above sounds, down below, in front and behind sound perceptions, if your explanation was correct, the pinna would probably look like the ears of a cat/horse/deer so that we can collect sounds that way, but the ridges and nooks and parabolic nature of the human ear is shaped in a very particular way so that differential tones of reflections within the ears, depending upon the direction of the sound to the pinna will induce a unique tone that all other directions will not have, so the brain can very simply determine from which direction the sounds are coming from.. The human pinna, or outer ear, is the only organ of the human body where you can actually see how it works, as long as you comprehend the function of the pinna and how sound is modified by it before it goes into the ear canal.

Thxxx sir🎩🎩🎩

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Maza a gaya❤❤

Hatsss offf... love you mann❤ no words to explain your explanations. 😮😢

Such beautiful presentation! Thank you.

i wish yall a happy new "ear"

How well we are being coded!😮

Okay ✅

Okay got it thanks ✅

Ok watched

Thank you very much sir because tomorrow is my paper

Thank you thank you thank youuu

How our ears works? 😳
First there is a outer part pinna which we can touch it is used to collect all the sound waves and send it to the auditory canal which is used as a channel 💕...Next part is ear drum which is a transparent layer. It vibrates from a very small motion. it also separates inner ear from external ear.🧁 Then the middle part of ear comes. In this part there are three tiny bones which are called ossicles. Which vibrates and transfers sound waves to inner ear . It also amplify the sound. Amplification is needed because There is liquid in inner part and it needs to be vibrated at a high pressure. Ossicles can increase 20x in pressure.
The three bones of ossicles are:
First bone: Malleus 😶
Second bone: Incus 🧁
Third bone: Stapes 😜
Next is the inner part of the ear....
Here are semicircles three rings. This helps body to balance. 🤗
A snail shape structure called cochlea. The fluid vibrates in it. Cochlea has special cells which converts sound waves to electrical signals. Unless Sound waves are not converted to electrical signals. They don't reach our brain and we are not able to hear Sound. Then these electrical signals reaches are auditory nerve which helps sound waves to reach the brain and we are able to hear 😁.
Because of Cochlea cells We can hear different sounds. They are sensitive for loudness and frequency and we can also tell when a sound is loud or soft and its frequency is high or low.This is how our ears work 😉

Thankyou sir love from Nepal 😂❤

Good job keep it up

Made my study easy ❤❤❤

Helped me so much to understand ear in just 7 mins.....lovely ...thank you so much

Thank you sir your explanation is amazing thank you a lot

Kurde laya 😂

Great description, illustration, and teaching about the function and design of the ear, but its creation was an accident, right?

Jejak

It's being saved to my only epic science playlist!

Sir please Hindi mai hi explain kijiye vo hi theek se samajh aata hai

Sir pahle apne hindi mai bolkar eye ko explain kiya tha to ab english kyo please sir hindi mai hi btao vo hi acchi tarah samajh aaya tha

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Wowwwwwww. Thank you sir

We are the perfect machine wich is known as Robot....made by 👽 ALIEN

Oohh my god you 're so good

Very good explanation

Hats off sir!! What an explanation explained a wide concept in less time , cleared all my doubts ❤ Thankyou so much

Nice dear sir

Nice explanation sir 😊