Hearing, Biology

HEARING -

  1. Sound waves struck ear drum, it starts vibrations, these vibrations are carried to MIS → f. ovalis → S. vestibule →  Hellicotrema → S. Tympani → f. rotundus → middle ear.
  2. In this way organ of corti are affected indirectly & sense of hearing is carried to brain by auditory nerve.
  3. Man can hear frequencies as low as 20 cycles per second & as high as 20,000 cps.
  4. The audible range of dog ranges 40,000 cps, and that of bat 1,00,000 cps.

852_hearing.png

Note : Common house cricket is having auditory receptors on legs, cockroach on anal cerci and antennae.

Posted Date: 10/3/2012 3:17:37 AM | Location : United States







Related Discussions:- Hearing, Assignment Help, Ask Question on Hearing, Get Answer, Expert's Help, Hearing Discussions

Write discussion on Hearing
Your posts are moderated
Related Questions
Explain the term Chemical Score? Since egg proteins contain all essential amino acids in adequate amounts and possess the highest nutritive value among dietary proteins, Block

Q What are the fruiting bodies present in a few fungi? Fruiting bodies are structures made of hyphae that project radially from the superior portion of the peduncle of a few fu

what is the meaning of direct and indirect respiration

Why does geographical isolation lead to speciation? The Geographical isolation between groups of the same species leads to formation of a new species since it disallows crossin

Ask question #Mcharacteristics of xerophytesinimum 100 words accepted#

Advantages and disadvantages of protozoa

Indian tick typhus Indian tick typhus (Mediterranean spotted fever) is a tick-borne rickettsial infection caused by Rickettsia conori and is characterized by fever and a chara

Environmental factors of viscosity and plasticity a) Temperature affects the viscosity of a colloid. Generally, its viscosity decreases as the temperature increases. For e.g.

How can a great biological diversity protect an ecosystem from environmental damage? Why are less biodiverse ecosystems at risk of suffering deep biological harm if submitted to ev

The reported occurrence of ICMAs is 1.2 per cent to 5 per cent of cases. Streptococci and S.aureus account for 50 per cent and 10 per cent of cases, respectively, and are seen with