Explain increase in sound wave pressure through middle ear, Science

Assignment Help:

Explain Increase in Sound Wave Pressure through Middle Ear

There are certain factors which contribute to an approximately eighty-fold increase in sound wave pressure through middle ear. These are:

  • Tympanic resonance (the tendency of the membrane to vibrate best over a particular range of frequencies)
  • Ossicle mechanical advantage, which amplifies sound twice
  • Concentration of sound at small oval window. The difference in area between the tympanic membrane and the smaller oval window concentrates the sound energy by a factor of about 20.

 

These factors constitute an impedence matching system that increases the wave pressure so that it is effectively transmitted from the low resistance medium of air into the higher resistance medium of the fluid in the inner ear. One of the major functions of the middle ear is to protect the ear from loud sounds.


Related Discussions:- Explain increase in sound wave pressure through middle ear

Define calculi and casts - abnormal constituent of urine, Define Calculi an...

Define Calculi and casts - abnormal constituent of urine An abnormal concretion in the body usually formed of mineral salts and found in the gall bladder, kidney or urinary bla

Explain the process of filtration - formation of urine, Explain the Process...

Explain the Process of Filtration - Formation of Urine The kidneys form urine in three phases: simple filtration, selective re-absorption and secretion. Let us begin with the p

Explain dyes for measurement of plasma volume, Explain Dyes for Measurement...

Explain Dyes for Measurement of Plasma Volume: A number of dyes, commonly known as 'vital dyes', have the ability to combine with proteins. When such a dye is injected into the

Enivronment, which is the probable principal source of nitrates and phospha...

which is the probable principal source of nitrates and phosphate a. the water cycle b. nitrogen fixation c. bacterial decay d. change in environmental temperature e. changes in lig

Fish, Are there any interesting fish

Are there any interesting fish

What is CEC, What is CEC The CEC of most soils increases with pH, belo...

What is CEC The CEC of most soils increases with pH, below pH 6.0 the charge for clay mineral is relatively constant, while above pH 6.0 the charge on the mineral colloid incr

Show the steps needed to derive the recursive formula, Consider the followi...

Consider the following differential equation: t 2 x''+ 5 t x' + (3 + 2 t) x = 0 a. Show the steps needed to derive the recursive formula for the coefficients of the pow

To study the formation of a drop of liquid, To study the formation of a dro...

To study the formation of a drop of liquid Gently pour aniline into a large beaker of cold water unless a layer about half an inch deep accumulates at the bottom. Place the bea

Heideggerian hermeneutic phenomenological approach, Data analysis: The...

Data analysis: The interview data was interpreted using a Heideggerian hermeneutic phenomenological approach. The researchers became intimately  immersed with the data duri

Introduction to radiation and chemical hazards, INTRODUCTION :  You read a...

INTRODUCTION :  You read about the fire hazards, general precautions and remedial measures in case of an outbreak of fire in the previous unit. In this unit you will learn about t

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd