Advertisements
Advertisements
प्रश्न
The figure given below shows the principal parts of a human ear. Study the diagram and answer the following questions.
 |
- 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.
Advertisements
उत्तर
-
- 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
Write short notes on the following: Cochlea
A fluid that occupies the larger cavity of the eye ball behind the lens is
___________.
State the main function of the Suspensory ligament of the eye
Give technical terms for The nerve which transmits impulses from the ear to the brain
Name the following:
Part of internal ear related to balance.
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
The part of ear associated with balance is the cochlea.
Note the relationship between the first two words and suggest the suitable word/words for the fourth place.
Eyes: Photoreceptors :: Ears : ______.
Note the relationship between the first two words and suggest the suitable word/words for the fourth place.
Semi-circular canal : Ampulla :: Cochlea : ______.
Define the following term:
Ear ossicles
