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प्रश्न
State the main function of the Eustachian tube
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उत्तर
Equalises air pressure on either sides of the eardrum allowing it to vibrate freely
संबंधित प्रश्न
Write short notes on the following: Cochlea
(i) Draw a well labelled diagram of the membranous labyrinth found in the inner ear.
(ii) Based on the diagram drawn above in (i) give a suitable term for each of the following descriptions :
1. The sensory cells that helps in hearing.
2. The part that is responsible for static balance of the body.
3. The membrane covered opening that connects the middle ear to the inner ear.
4. The fluid present in the middle chamber of cochlea.
5. The structure that maintains dynamic equilibrium of the body.
The exact location of the Yellow spot
Differentiate between Near vision and Distant vision (shape of the eye lens)
Sclerotic layer or choroid layer.(Which one forms the Iris ?)
Where is the oval window located? Briefly mention its function.
The diagram alongside represents the structure of the human ear.
(i) Write the names of the parts labelled a to g.
(ii) State briefly the functions of the parts b, d, and g.
(iii) Name the main division of the ear.
(iv) Which is the smallest bone in the human body?
(v) What is labyrinth?
Select the option with incorrect identification:
The median canal of cochlea is filled with ______.
The figure given below shows the principal parts of a human ear. Study the diagram and answer the following questions.
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- Label the parts 1 to 8.
- State the role of parts 6, 7 and 8.
- Why is it harmful to use a sharp object to remove ear wax? Mention the number and name of the part involved.
