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प्रश्न
Given below is the diagram of the human ear. Study the diagram and then answer the questions that follow:
(i) What role does the eardrum play in hearing?
(ii) What common term is given to the parts labeled A, B, and E?
(iii) Would there be any difference if these three parts mentioned in (ii) above were replaced by one by one? Why?
(iv) Give the biological term for the parts labeled C and D.
(v) Name the fluid which fills the parts mentioned in (iv) above.
(vi) State the functions of the ear.
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उत्तर
(i) The eardrum is vibrated by sound waves and passes them to the internal ear.
(ii) Ear ossicles.
(iii) One big ossicle would not be able to produce effective amplification because it would require a greater force of vibration that supplied by the eardrum normally. Moreover, three smaller ossicles with proper distance between their produce multiple amplification and effective transmission.
(iv) C is semi-circular canals and D is the cochlea.
(v) Endolymph.
(vi) Hearing and balancing of the body.
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संबंधित प्रश्न
Write short notes on the following Ear ossicles
find odd one from following: Malleus, iris, Stapes, Incus.
State whether the following statements are true (T) or false (F). If false, correct them by changing any one single word in each.
Semi-circular canals are concerned with static (positional) balance.
Given below is a set of five parts. Rewrite them in correct sequence.
Cochlea, tympanum, auditory canal, ear ossicles, oval window.
With reference to the human ear, answer the question that follow:
Name the three small bones present in the middle ear. What is the biological term for them collectively ?
Name the part of the ear associated with hearing.
What is the function of three tiny bones in the ear ?
Name the nerve which carries electrical impulses from the cochlea of ear to the brain.
Name the following:
Part of internal ear related to balance.
Verify experimentally the laws reflection of sound.
