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प्रश्न
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?
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उत्तर
(i) (a) Bone of skull
(b) Inner ear
(c) Eardrum
(d) Bone of skull
(e) Bone of middle ear
(f) Middle ear
(g) Air filled
(ii) (b) Inner ear - It transmits the impulse to brain.
(d) Bone of skull - It helps in fixing the position of the ears to help the brain use auditory cues to judge direction and distance of sounds.
(g) Air filled - It keeps the pressure in the middle ear equalized with pressure in the outside.
(iii) The main division of the ear are: outer ear, middle ear and inner ear.
(iv) Stirrup
(v) The labyrinth is the inner ear which consists of utriculus, sacculus, cochlea and three semicircular canals.
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संबंधित प्रश्न
Explain how the human ear works.
Time taken by an object to complete one oscillation is called ___________.
Eye : Optic nerve : : Ear : ___________
A fluid that occupies the larger cavity of the eye ball behind the lens is
___________.
The ear ossicle which is attached to the tympanum.
Choose the correct answer.
Canal joining middle ear to pharynx ___________
The figure below is the sectional view of a part of the skull showing a sense organ:
What are the parts labeled 'm', 'i' and 's'? What do these parts constitute collectively?
Choose the Odd One Out:
The part of the ear that collects the sound from the surroundings is ______.
With reference to human ear answer the question that follow:
Name the part of the ear associated with Static balance.
