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प्रश्न
Why should we not put a pin or pencil in our ears ?
उत्तर
We should not put a pin or pencil in our ears because they can damage our eardrum and can make us deaf.
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संबंधित प्रश्न
Name the following:
The ear ossicle attached to the tympanum.
Name the following:
The nerves which transmit impulse from ear to the brain.
Mention, where in living organism is the following located and state their main function:
Organ of corti
Mention if the following statement is true (T) or false (F) Give reason.
Malleus incus and stapes are collectively called the ear ossicles.
Where is the Utriculus located? Briefly mention its function.
Mention the exact location of the following :
Incus
The figure below is the sectional view of a part of the skull showing a sense organ:
What do you call the part shown in the form of a spiral? What is its function?
The following diagram refers to the ear of a mammal.
(i) Label the parts 1 to 10 to which the guidelines point.
(ii) Which structure:
(a) converts sound waves into mechanical vibrations?
(b) Converts vibrations into nerve impulses?
(c) Responds to change in position?
(d) Transmits impulses to the brain?
(e) Equalizes atmospheric pressure and pressure in the ear.
Mention, if the following statement is True or False
Deafness is caused due to the rupturing of the pinna.
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.
