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प्रश्न
State the functions of the following:
Semi-circular canals
उत्तर
They are concerned with maintaining equilibrium and posture of the body.
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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
State the main function of the Eustachian tube
(i) Draw a well labelled diagram of the membranous labyrinth found in the inner ear.
(ii) Based on the diagram drawn above in (i) give a suitable term for each of the following descriptions :
1. The sensory cells that helps in hearing.
2. The part that is responsible for static balance of the body.
3. The membrane covered opening that connects the middle ear to the inner ear.
4. The fluid present in the middle chamber of cochlea.
5. The structure that maintains dynamic equilibrium of the body.
the biological/technical terms for a thin membrane covering the entire front part of the eye.
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Give technical terms for The nerve which transmits impulses from the ear to the brain
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Name the following:
The nerves which transmit impulse from ear to the brain.
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Deafness is caused due to rupturing of the pinna.
With reference to the human ear, answer the question that follow:
Give the technical term for the structure found in the inner ear.
Mention the exact location of the following :
Incus
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?
Draw a labeled diagram of the inner ear. Name the part of the inner ear that is responsible for static balance in human beings.
Assertion: Human beings Cannot hear infrasonic sounds.
Reason: Sound with a frequency less than 20 Hz is called infrasonic sound.
Categorise the following parts under (i) external, (ii) middle and (iii) internal ear.
Ear drum, hammer, pinna, cochlea, anvil, stirrup, eustachian tube, tympanum, oval window, semi-circular canals.
The median canal of cochlea is filled with ______.
Define the following term:
Ear ossicles
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.
