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प्रश्न
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.
उत्तर
(i)
1. Cochlea.
2. Auditory nerve.
3. Semi-circular canals.
4. Ear ossicles.
5. Auditory meatus.
6. Pinna.
7. Er drum.
8. Fenestra rotunda.
9. Eustachian tube.
10. Fenestra ovalis.
(ii)
(a) Ear drum or tympanum.
(b) An organ of Corti.
(c) Semi-circular canals.
(d) Auditory nerve.
(e) Eustachian tube.
APPEARS IN
संबंधित प्रश्न
Draw labelled diagrams of the following: Ear
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(A) blind spot
(B) retina
(C) cochlea
(D) cornea
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State the main function of the Eustachian tube
fill in the blanks with suitable functions: Ciliary body and __________.
A fluid that occupies the larger cavity of the eye ball behind the lens is
___________.
Differentiate between the Rods and Cones of Retina (Type of pigment)
With reference to the human ear, answer the question that follow:
Name the three small bones present in the middle ear. What is the biological term for them collectively ?
Name the part of the ear associated with dynamic balance.
Name the three tiny bones present in the middle part of ear.
There are three small bones in the muddle ear – anvil, hammer and stirrup :
(a) Which of these bones is in touch with ear-drum ?
(b) Which of these bones is in touch with oval window ?
Name the tube which connects the middle ear to throat.
Name the nerve which carries electrical impulses from the cochlea of ear to the brain.
Verify experimentally the laws reflection of sound.
The eardrum is known as ______.
______ is the smallest bone in the human body.
The median canal of cochlea is filled with ______.
With reference to human ear answer the question that follow:
Name the part of the ear associated with dynamic balance.
With reference to human ear answer the question that follow:
Name the part of the ear associated with the amplification of vibrations.
