human ear mcq | human ear question and answers | ear mcqs with answers | general knowledge quiz

[@Sweety44547]

Thank you for new channel subscribed

[@dearcompetitiveexams]

Thanks a lot, hope this effort will add more value to your perperation

[@DenisNdikuyera]

Number 8. If you read the content of physiology by guyton you will find concept of impedence matching, which are factors that ensure energy transmission between outer and middle ear with minimal energy loss.
In addition to the amplification effect of lever action of ossicular chain, Tympanic membrane also significantly contributes to energy amplification
How?
The vibrating surface area of tympanic membrane is 55square mm while the surface area of stapes plate which vibrates against round window is 3.2mm creating vibrating surface ratio of 17:1. This means that the energy received at stapes foot plate is 17 times much higher than energy transmitted by tympanic membrane.
So with the above explanation tympanic membrane significantly contributes to sound energy amplification.

[@DenisNdikuyera]

Qn 24 was answered right, it is indeed the tympanic membrane that separates outer ear from middle ear.

[@AbhishekKumar-uu7zb]

Thanks ❤ 🙏

[@LeshaSingh]

Round window play a role in transmit sound vibration

[@sapanashekhawatrajput7034]

18/30

[@saturdayBees]

26.. Is'nt the answer C/ tympanic membrane ? Cochlea converts mechanical vibrations into electrical signals ???

[@Uma_2906]

👌❤️🤝

[@NamaraBrial]

I got 24 correct

[@ashiemaris4640]

Question 26, the answer is Tympanic membrane.

[@DenisNdikuyera]

My dear qn 26 was answered wrongly, the answer is tympanic membrane. Remember the energy conversions are sound energy to mechanical energy to hydraulic energy to bioelectrical energy

[@zinashDebele-t7w]

Pinna collects sound waves

[@AbhishekKumar-uu7zb]

24 May be wrong answer