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Question
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.
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Solution
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- Pinna
- Ear drum
- Ear canal
- Hammer
- Semi-circular canal
- Cochlea
- Vestibular portion of auditory nerve.
- Eustachian Tube
- Part 6 (Cochlea): It contains sensory cells for hearing.
Part 7 (Auditory Nerve): It transmits the impulse of hearing to the brain.
Part 8 (Eustachian Tube): It equalises air pressure on both sides of the tympanum. - Sharp objects may damage the (part 3) ear drum and cause deafness. Deafness can result from eardrum or tympanic ruptures.
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Write short notes on the following Ear ossicles
State whether the following statements are true (T) or false (F). If false, correct them by changing any one single word in each.
Semi-circular canals are concerned with static (positional) balance.
Where is the Semicircular canals located? Briefly mention its function.
Name the part of the ear associated with hearing.
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'.
Given below is a diagram of a part of the human ear. Study the same and answer the question that follow:
Name the audio receptor region present in the part labeled 'A'.
Differentiate between:
Cochlea and Concha.
Draw a labeled diagram of the inner ear. Name the part of the inner ear that is responsible for static balance in human beings.
Mention, if the following statement is True or False
The part of ear associated with balance is the cochlea.
Select the option with incorrect identification:
