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प्रश्न
How could you convince a small child that when you speak, it is not necessary for air to travel from you mouth to the ear of listener?
उत्तर
There is no actual movement of air from the sound-producing body to our ear. The air layers only vibrate back and forth and transfer the sound energy from one layer to the next layer and fall on our ears; the eardrums vibrate accordingly and reproduce the sound.
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संबंधित प्रश्न
The ear ossicle which is attached to the tympanum.
Name the following:
The nerves which transmit impulse from ear to the brain.
Where is the Utriculus located? Briefly mention its function.
The figure below is the sectional view of a part of the skull showing a sense organ:
Name the part labeled 'tm'. What is its function?
Given below is the diagram of the human ear. Study the same and answer the questions that follow:
(i) Give the biological term for the part labeled ‘A’ and state its function.
(ii) Name the part labeled ‘B’ and state its function.
(iii) Name the part labeled ‘C’ and state its function.
(iv) Give the function of ear wax.
Mention, if the following statement is True or False
Cochlea of the ear is concerned with the sense of balance.
Name the three ossicles of the middle ear.
Mention the name of passage is the outer ear which carries sound waves to the eardrum.
Where are the following located?
Eustachian canal
- Draw a neat and well labelled diagram of the membranous labyrinth found in the inner ear.
- Based on the diagram drawn above in (i), give a suitable term for each of the following descriptions:
- The structure responsible for hearing.
- The sensory cells that help in hearing.
- The membrane-covered opening that connects the middle ear to inner ear.
- The nerves that carry impulses from the ear to the brain.
- The tube which equalises the air pressure on either side of the ear drum.
