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प्रश्न
What is the function of ear ossicles?
उत्तर
Function of ear ossicles:
- Ear ossicles once set in vibrations transmit the vibration to the oval window which sets the cochlear fluid into vibration.
संबंधित प्रश्न
Answer the following:
Which part of the ear determines the pitch of a sound?
For human ears, the audible range is 20 Hz to 20,000 Hz.
The unit of frequency is ______.
Deafness is causal due to the rupturing of the Pinna.
Given below is a representation of a kind of pollution. Study the same and answer the questions that follow
(i) Name the kind of pollution.
(ii) List any three common sources of this pollution.
(iii) Mention three harmful effects of this pollution on human health.
(iv) Explain the term ‘Pollutant’.
(v) Name two soil pollutants
Given in the box below are a set of 14 biological terms. Of these, 12 can be paired into 6 matching pairs. Out of the six pairs, one has been done for you as an example.
Example : endosmosis - Turgid cell.
Identify the remaining five matching pairs :
| Cushing’s syndrome, Turgid cell, Iris, Free of rod and cone cells, Colour of eyes, Hypoglycemia, Active transport, Acrosome, Addison’s disease, Blind spot, Hyperglycemia, Spermatozoa, Endosmosis, Clotting of blood. |
(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.
Differentiate between the Rods and Cones of Retina (Type of pigment)
The ear ossicle which is attached to the tympanum.
Perilymph or endolymph (Which one surrounds the organ of Corti ?)
Name the part of the ear associated with dynamic balance.
Given below is the diagram of a part of the human ear. Study the same and answer the questions that follow:
 |
Give the collective biological term for Malleus, locus and Stapes.
Draw a neat and labelled diagram of the human ear. With the help of this diagram, explain the construction and working of the human ear.
Write whether the following is true or false:
Vitreous chamber is present in ear in humans.
Name the following:
The ear ossicle in contact with the oval window of the inner ear.
Name the three ossicles of the middle ear.
List the causes of noise pollution.
Note the relationship between the first two words and suggest the suitable word/words for the fourth place.
Eyes: Photoreceptors :: Ears : ______.
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.
Ear pinna : Auricle :: Inner ear : ______.
