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प्रश्न
Answer the following:
Which part of the ear determines the pitch of a sound?
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उत्तर
Cochlea determines the pitch of a sound.
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संबंधित प्रश्न
Draw labelled diagrams of the following: Ear
Photoreceptor cells are present in __________.
(A) blind spot
(B) retina
(C) cochlea
(D) cornea
fill in the blanks with suitable functions: Ciliary body and __________.
State the main function of the Suspensory ligament of the eye
The figure below is the sectional view of a part of the skull showing s sense organ:
Name the sense organ.
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.
Write whether the following is true or false:
Vitreous chamber is present in ear in humans.
Choose the correct answer.
Canal joining middle ear to pharynx ___________
Given below is a diagram of a part of the human ear. Study the same and answer the question that follow:
State the functions of the parts labeled 'A' and 'B'.
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
The part of the ear that turns pressure variations into electrical signals is ______.
The part of the ear that collects the sound from the surroundings is ______.
Which of the following structures equalises the air pressure on either side of the tympanum?
Note the relationship between the first two words and suggest the suitable word/words for the fourth place.
Semi-circular canal : Ampulla :: Cochlea : ______.
Define the following term:
Ear ossicles
With reference to human ear answer the question that follow:
Name the part of the ear associated with the amplification of vibrations.
Given below is the diagram of a part of the human ear. Study the same and answer the questions that follow:
 |
- Give the collective biological term for Malleus, locus and Stapes.
- Name the parts labelled A, B and C in the diagram.
- State the functions of the parts labelled 'A' and 'B'.
- Name the audio receptor region present in the part labelled 'A'.
