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Question
Differentiate between:
The middle ear and Inner ear.
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Solution
| Middle Ear | Inner Ear |
| It has three ear ossicles and eustachian tube. | It has a cochlea, utriculus, sacculus, and semicircular canals. |
| It transmits sound vibrations. | It is concerned with hearing, balance, and equilibrium. |
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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.
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State the main function of the Eustachian tube
Where is the Cochlea located? Briefly mention its function.
Draw a labelled diagram of the inner ear.
Write whether the following is true or false:
The part of the ear associated with balance is the cochlea.
Long answer question
Draw the neat labelled diagram of the human ear.
The part of the ear that collects the sound from the surroundings is ______.
Which of the following structures equalises the air pressure on either side of the tympanum?
Define the following term:
Ear ossicles
- 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.
