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प्रश्न
Name the following:
Fluid present in the posterior chamber of the eye.
उत्तर
Vitreous humour
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संबंधित प्रश्न
Explain, why a normal eye is not able to see distinctly the objects placed closer than 25 cm, without putting any strain on the eye.
Fill in the following blank with suitable word:
The part of eye sensitive to light is...................
What change is made in the eye to enable it to focus on objects situated at different distances? Illustrate your answer with the help of diagrams.
Out of animals of prey and predators, which have their eyes:
on the opposite sides of their head?
Name the following:
The type of lens used for correcting myopia.
Give Technical Term:
The fluid which conveys the vibrations of sound in the cochlea and semicircular canals.
Choose the Odd One Out:
Write an Explanation.
Minimum distance of distinct vision
Complete the paragraph by choosing the right options given below.
(minimum, near point, 25 cm, farthest, farthest distance, far point)
The _______ distance of an object from a normal eye, at which it is clearly visible without stress on the eye, is called the minimum distance of distinct vision. The position of the object at this distance is called the _______ of the eye, for a normal human eye, the near point is at _______. The _______ distance of an object from a human eye, at which it is clearly visible without stress on the eye is called _______ of distinct vision. The position of the object at this distance is called the _______ of the eye.
______ is tough and thick white sheath that protects the inner parts of the eye.
______ is the structural and functional unit of living organisms.
The black opening between the aqueous humour and the lens is called ____________.
Eyes of the nocturnal birds have large cornea and a large pupil. How does this structure help them?
Which part of the eye gets affected if someone is suffering from cataract? How is it treated?
The coloured portion of the eye is the ______.
Match the following:
| Column - I | Column - II |
| 1. Retina | a. Pathway of light |
| 2. Pupil | b. Far point comes closer |
| 3. Ciliary muscles | c. near point moves away |
| 4. Myopia | d. Screen of the eye |
| 5. Hypermetropia | f. Power of accommodation |
Which of the following is responsible for the adjustment of the size of pupil?
Write the main functional activity of the following structure.
Choroid
Differentiate between members of the following pair with reference to what is asked in the bracket.
Aqueous humour and vitreous humour (location).
Give reason:
Blind spot is considered as 'area of no vision'.
