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प्रश्न
The following diagram refers to the ear of a mammal.
(i) Label the parts 1 to 10 to which the guidelines point.
(ii) Which structure:
(a) converts sound waves into mechanical vibrations?
(b) Converts vibrations into nerve impulses?
(c) Responds to change in position?
(d) Transmits impulses to the brain?
(e) Equalizes atmospheric pressure and pressure in the ear.
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उत्तर
(i)
1. Cochlea.
2. Auditory nerve.
3. Semi-circular canals.
4. Ear ossicles.
5. Auditory meatus.
6. Pinna.
7. Er drum.
8. Fenestra rotunda.
9. Eustachian tube.
10. Fenestra ovalis.
(ii)
(a) Ear drum or tympanum.
(b) An organ of Corti.
(c) Semi-circular canals.
(d) Auditory nerve.
(e) Eustachian tube.
संबंधित प्रश्न
Given in the box below are a set of 14 biological terms. Of these, 12 can be paired into 6 matching pairs. Out of the six pairs, one has been done for you as an example.
Example : endosmosis - Turgid cell.
Identify the remaining five matching pairs :
| Cushing’s syndrome, Turgid cell, Iris, Free of rod and cone cells, Colour of eyes, Hypoglycemia, Active transport, Acrosome, Addison’s disease, Blind spot, Hyperglycemia, Spermatozoa, Endosmosis, Clotting of blood. |
Name the following:
The part which equalises the air pressure in the middle and external ear.
Given below is a set of five parts. Rewrite them in correct sequence.
Cochlea, tympanum, auditory canal, ear ossicles, oval window.
Where is the Utriculus located? Briefly mention its function.
Name the part of the ear associated with hearing.
Write whether the following is true or false:
The part of the ear associated with balance is the cochlea.
Mention, if the following statement is True or False
Cochlea of the ear is concerned with the sense of balance.
Choose the Odd One Out:
Long answer question
Draw the neat labelled diagram of the human ear.
With reference to human ear answer the question that follow:
Name the part of the ear associated with dynamic balance.
