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प्रश्न
The diagram alongside represents the structure found in the inner ear. Study the same and then answer the questions that follow:
(i) Name the parts labelled A, B, C and D.
(ii) Name the parts of the ear responsible for transmitting impulses to the brain.
(iii) Name the part labelled above which is responsible for:
1. Static equilibrium. 2. Dynamic equilibrium. 3. Hearing
(iv) Name the audio receptor cells which pick up vibrations.
(v) Name the fluid present in the inner ear.
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उत्तर
(i) A - Semi-circular canal
B - Utriculus
C - Sacculus
D - Cochlea
(ii) Auditory nerve.
(iii) 1. Utriculus and sacculus
2. Semi-circular canal
3. Cochlea
(iv) Sensory cells of organ of Corti
(v) Perilymph
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संबंधित प्रश्न
find odd one from following: Malleus, iris, Stapes, Incus.
The three parts of human ear contributing in hearing are-
Differentiate between members of the following pair with reference to what is asked in bracket.
Semi-circular canal and cochlea (Senses perceived)
Mention, where in living organism is the following located and state their main function:
Organ of corti
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.
State the functions of the following:
Semi-circular canals
Complete the following sentence with appropriate Word
The sequence of ear ossicles of vertebrates starting from the tympanum is:
In the inner ear, the pressure variations are turned into electrical signals by the ______.
Give reason:
Three small bones of ear ossicles are advantageous as compared to one single bone for hearing.
