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
Name the following:
The ear ossicle attached to the tympanum.
Where is the Semicircular canals located? Briefly mention its function.
Draw a labelled diagram of the inner ear.
Why should we not put a pin or pencil in our ears ?
The diagram alongside represents the structure of the human ear.
(i) Write the names of the parts labelled a to g.
(ii) State briefly the functions of the parts b, d, and g.
(iii) Name the main division of the ear.
(iv) Which is the smallest bone in the human body?
(v) What is labyrinth?
X is known as the balancing organ of ear.
Choose the correct option for X.
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.
Ear pinna : Auricle :: Inner ear : ______.
Where are the following located?
Eustachian canal
