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प्रश्न
Complete the following sentence with appropriate Word
The parts of the human ear concerned with hearing are :
विकल्प
Cochlea, ear ossicles and tympanum
Semicircular canals, utriculus and sacculus
Eustachian tube, tympanum and utriculus
Perilymph, ear ossicles and semicircular canals
उत्तर
Cochlea, ear ossicles, and tympanum
APPEARS IN
संबंधित प्रश्न
The number of oscillations per second of a vibrating object is called its time period.
Given below is a diagram depicting a defect of the human eye, study the same and then answer the questions that follow:
(i) Name the defect shown in the diagram.
(ii) What are the two possible that cause this defect?
(iii) Name the type of lens used to correct this defect.
(iv) With the help of a diagram show how the defect shown above is rectified using a suitable lens.
State the main function of the Suspensory ligament of the eye
Give technical terms for The nerve which transmits impulses from the ear to the brain
Name the following:
The nerves which transmit impulse from ear to the brain.
State whether the following statements are true (T) or false (F). If false, correct them by changing any one single word in each.
Semi-circular canals are concerned with static (positional) balance.
Mention if the following statement is true (T) or false (F) Give reason.
The auditory nerve is purely for perceiving sound
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 ?
Differentiate between:
The middle ear and Inner ear.
Given below is the diagram of the human ear. Study the diagram and then answer the questions that follow:
(i) What role does the eardrum play in hearing?
(ii) What common term is given to the parts labeled A, B, and E?
(iii) Would there be any difference if these three parts mentioned in (ii) above were replaced by one by one? Why?
(iv) Give the biological term for the parts labeled C and D.
(v) Name the fluid which fills the parts mentioned in (iv) above.
(vi) State the functions of the ear.
State the functions of the following:
Semi-circular canals
Assertion: Human beings Cannot hear infrasonic sounds.
Reason: Sound with a frequency less than 20 Hz is called infrasonic sound.
X is known as the balancing organ of ear.
Choose the correct option for X.
Choose the odd one out from the following terms and name the category to which the others belong:
State the functions of the following:
Auditory nerve
The part of the inner ear which is responsible for hearing is ______.
The spiral organ possessing sensory cells for hearing is ______.
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.
