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प्रश्न
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.
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उत्तर
- External ear: Pinna, Tympanum, Ear drum.
- Middle ear: Hammer, anvil, stirrup, Eustachian tube, oval window.
- Internal ear: Semi-circular canals, Cochlea.
संबंधित प्रश्न
Given below is a diagram depicting a defect of the human eye, study the same and then answer the questions that follow:
(i) Name the defect shown in the diagram.
(ii) What are the two possible that cause this defect?
(iii) Name the type of lens used to correct this defect.
(iv) With the help of a diagram show how the defect shown above is rectified using a suitable lens.
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The ear ossicle which is attached to the tympanum.
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Organ of corti
Write whether the following is true or false:
Vitreous chamber is present in ear in humans.
Given below is a diagram of a part of the human ear. Study the same and answer the question that follow:
State the functions of the parts labeled 'A' and 'B'.
Complete the following sentence with appropriate Word
The sequence of ear ossicles of vertebrates starting from the tympanum is:
The hearing range of the human ear is ______.
In the inner ear, the pressure variations are turned into electrical signals by the ______.
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Reason: Sound with a frequency less than 20 Hz is called infrasonic sound.
