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Question
The figure below is the sectional view of a part of the skull showing a sense organ:
Name the part labeled 'tm'. What is its function?
Solution
Tympanic membrane. It vibrates and then sets the ear ossicles into vibration in the process of hearing.
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What is the function of ear ossicles?
The exact location of the Yellow spot
Name the following:
The nerves which transmit impulse from ear to the brain.
Mention if the following statement is true (T) or false (F) Give reason.
The auditory nerve is purely for perceiving sound
Name the three ear ossicles.
With reference to the human ear, answer the question that follow:
Give the technical term for the structure found in the inner ear.
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 ?
With reference to the human ear, answer the question that follow:
Name the nerve, which transmits messages from the ear to the brain.
Draw a labelled diagram of the inner ear.
Differentiate between:
Cochlea and Concha.
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.
Mention, if the following statement is True or False
The part of ear associated with balance is the cochlea.
Mention, if the following statement is True or False
Cochlea of the ear is concerned with the sense of balance.
Complete the following sentence with appropriate Word
The sequence of ear ossicles of vertebrates starting from the tympanum is:
Select the option with incorrect identification:
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 spiral organ possessing sensory cells for hearing is ______.
