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

Procedure of earthing in an appliance, Procedure : There are two parts of ...

Procedure : There are two parts of this activity. Part A deals with the assembling of the continuity testing device (CTD) and Part B deals with checking the effectiveness of earth

Explain functions of the pancreas - neutralising action, Explain Functions ...

Explain Functions of the Pancreas - Neutralising action Neutralising action: Pancreatic juice is alkaline in nature and acid chyme is rendered alkaline by the strong alkalinity

Explain transport - functions of plasma proteins, Explain Transport - Funct...

Explain Transport - Functions of Plasma Proteins Hormones and several other small molecules travelling in the plasma would themselves get filtered in the renal glomeruli and ge

Food chain, what happens if one animal is not there

what happens if one animal is not there

Classifying living things, characteristics which help classify the members ...

characteristics which help classify the members of the protozoan kingdom

A tropical storm will be declared a hurricane when, A tropical storm will b...

A tropical storm will be declared a hurricane when: There is evidence of eye formation and sustained wind speeds of 74 mph

Explain the emergency contraceptive pill (ecp) method, Explain the Emergenc...

Explain the Emergency Contraceptive Pill (ECP) method The ECP method or "morning after pill" uses a high dose of combined oral contraceptives (OCs) to prevent conception. The O

State the pipette method of soil, State the Pipette Method of soil The ...

State the Pipette Method of soil The   sieve analysis, though is a true particle size analysis, is  unable to separate particles smaller than 20 microns. Such particles are sep

Define the functions of small intestine, Define the Functions of Small Inte...

Define the Functions of Small Intestine What functions does the small intestine perform? Can you list a few? Tally your responses with the functions enumerated herewith. The sm

Explain the structure of tongue, Explain the Structure of Tongue The to...

Explain the Structure of Tongue The tongue is a muscular organ. It is covered with a mucous membrane. The tongue is attached by its base to the hyoid bone and by a fold of its

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