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प्रश्न
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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उत्तर
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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.
संबंधित प्रश्न
The exact location of the Yellow spot
With reference to the human ear, answer the question that follow:
Name the three small bones present in the middle ear. What is the biological term for them collectively ?
With reference to the human ear, answer the question that follow:
Name the nerve, which transmits messages from the ear to the brain.
Draw a labelled diagram of the inner ear.
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'.
Mention the name of passage is the outer ear which carries sound waves to the eardrum.
Vibrating particles travel all the way from the vibrating objects to the ear.
Choose the odd one out from the following terms and name the category to which the others belong:
Which of the following structures equalises the air pressure on either side of the tympanum?
Note the relationship between the first two words and suggest the suitable word/words for the fourth place.
Eyes: Photoreceptors :: Ears : ______.
