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प्रश्न
Differentiate between members of the following pair with reference to what is asked in bracket.
Dynamic balance and static balance (Definition)
उत्तर
Dynamic balance is when the body is in motion whereas static balance is positional balance with respect to gravity.
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संबंधित प्रश्न
find odd one from following: Malleus, iris, Stapes, Incus.
(i) Draw a well labelled diagram of the membranous labyrinth found in the inner ear.
(ii) Based on the diagram drawn above in (i) give a suitable term for each of the following descriptions :
1. The sensory cells that helps in hearing.
2. The part that is responsible for static balance of the body.
3. The membrane covered opening that connects the middle ear to the inner ear.
4. The fluid present in the middle chamber of cochlea.
5. The structure that maintains dynamic equilibrium of the body.
Briefly explain the following terms: Power of accommodation
fill in the blanks with suitable functions: Ciliary body and __________.
The ear ossicle which is attached to the tympanum.
Perilymph or endolymph (Which one surrounds the organ of Corti ?)
Name the following:
The ear ossicle attached to the tympanum.
Mention, where in living organism is the following located and state their main function:
Organ of corti
Why should we not put a pin or pencil in our ears ?
Give the main function of the following:
Cochlea
Write whether the following is true or false:
The part of the ear associated with balance is the cochlea.
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.
Choose the Odd One Out:
List the causes of noise pollution.
Choose the odd one out from the following terms and name the category to which the others belong:
Note the relationship between the first two words and suggest the suitable word/words for the fourth place.
Ears: Auditory nerve :: Eyes : ______.
Note the relationship between the first two words and suggest the suitable word/words for the fourth place.
Semi-circular canal : Ampulla :: Cochlea : ______.
With reference to human ear answer the question that follow:
Name the part of the ear associated with Static balance.
With reference to human ear answer the question that follow:
Name the part of the ear associated with dynamic balance.
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.
