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प्रश्न
Name the three ossicles of the middle ear.
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उत्तर
Middle ear: It consists of a chain of three ear ossicles called Malleus (hammer), Incus (anvil), and Stapes (stirrup-the smallest bone). On receiving the vibrations from the tympanic membrane, the ear ossicles amplify the vibrations and transfer these to the cochlea.
A short Eustachian tube connects the middle ear to the pharynx. It equalizes air pressure on both sides of the eardrum.
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संबंधित प्रश्न
Given below is a representation of a kind of pollution. Study the same and answer the questions that follow
(i) Name the kind of pollution.
(ii) List any three common sources of this pollution.
(iii) Mention three harmful effects of this pollution on human health.
(iv) Explain the term ‘Pollutant’.
(v) Name two soil pollutants
Name the three ear ossicles.
Name the following:
Part of internal ear related to balance.
Choose the correct answer :
Organ of corti is found in ___________
Draw a labeled diagram of the inner ear. Name the part of the inner ear that is responsible for static balance in human beings.
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.
State the functions of the following:
Semi-circular canals
Complete the following sentence with appropriate Word
The parts of the human ear concerned with hearing are :
List the causes of noise pollution.
Define the following term:
Ear ossicles
