Advertisements
Advertisements
प्रश्न
State the main function of the Eustachian tube
Advertisements
उत्तर
Equalises air pressure on either sides of the eardrum allowing it to vibrate freely
संबंधित प्रश्न
Write short notes on the following: Cochlea
The unit of frequency is ______.
Name the following:
The tube which connects the cavity of the middle ear with the throat.
Name the three ear ossicles.
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.
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.
Describe the structure and function of the human ear?
The hearing range of the human ear is ______.
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.
Which of the following structures equalises the air pressure on either side of the tympanum?
