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प्रश्न
State the Function:
Endolymph
उत्तर
It transmits vibrations to the hair cells of the inner ear to produce acoustic perception.
APPEARS IN
संबंधित प्रश्न
Explain the following:
Mechanism through which a sound produces a nerve impulse in the inner ear.
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
find odd one from following: Malleus, iris, Stapes, Incus.
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.
Name the following:
The nerves which transmit impulse from ear to the brain.
Note the relationship between the first two words and suggest the suitable word for the fourth place.
sound : ear drum :: Dynamic balance : ……
Mention, where in living organism is the following located and state their main function:
Organ of corti
Where is the Cochlea located? Briefly mention its function.
Name that part of ear which vibrates when outside sound falls on it.
Choose the correct answer.
Canal joining middle ear to pharynx ___________
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?
Given below is a diagram of a part of the human ear. Study the same and answer the question that follow:
Name the parts labeled A, B and C in the diagram.
Long answer question
Draw the neat labelled diagram of the human ear.
State the functions of the following:
Auditory nerve
The spiral organ possessing sensory cells for hearing is ______.
Which of the following structures equalises the air pressure on either side of the tympanum?
Name the part of the inner ear that is responsible for static balance in human beings.
