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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.
संबंधित प्रश्न
Write short notes on the following Ear ossicles
The number of oscillations per second of a vibrating object is called its time period.
Eye : Optic nerve : : Ear : ___________
State the exact location of the Organ of Corti
There are three small bones in the muddle ear – anvil, hammer and stirrup :
(a) Which of these bones is in touch with ear-drum ?
(b) Which of these bones is in touch with oval window ?
Write whether the following is true or false:
The part of the ear associated with balance is the cochlea.
Given below is a diagram of a part of the human ear. Study the same and answer the question that follow:
Name the audio receptor region present in the part labeled 'A'.
Complete the following sentence with appropriate Word
The sequence of ear ossicles of vertebrates starting from the tympanum is:
Categorise the following parts under (i) external, (ii) middle and (iii) internal ear.
Ear drum, hammer, pinna, cochlea, anvil, stirrup, eustachian tube, tympanum, oval window, semi-circular canals.
The part of the inner ear which is responsible for hearing is ______.
