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प्रश्न
State the Function:
Choroid coat in the eye
उत्तर
Choroid layer with many capillaries forms the nutritive layer of the eye. The extended choroid layer forms the pigmented muscular curtain called the iris. The aperture in the centre through which light enters the aperture is called the pupil.
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संबंधित प्रश्न
Write the function of retina in human eye.
Myopia is an example of ______.
With the help of ciliary muscles the human eye can change its curvature and thus alter the focal length of its lens. State the changes that occur in the curvature and focal length of the eye lens while viewing (a) a distance object, (b) nearby objects.
What kind of lens is present in the human eye?
Fill in the following blank with suitable word:
Most of the refraction of light rays entering the eye occurs at the outer surface of the.............
Why does it take some time to see objects in a dim room when you enter the room from bright sunshine outside?
To focus the image of a nearby object on the retina of an eye:
(a) the distance between eye-lens and retina is increased
(b) the distance between eye-lens and retina is decreased
(c) the thickness of eye-lens is decreased
(d) the thickness of eye-lens is increased
Fill in the following blank with suitable word:
Having two eyes enables us to judge.................more accurately.
Give scientific reason:
We cannot clearly see an object kept at a distance less than 25 cm from the eye.
Sketch and label V.S. of a human eye.
Name the following:
The pigmented circular area seen in the eye.
Give Technical Term:
The fluid which conveys the vibrations of sound in the cochlea and semicircular canals.
State the Function:
Vitreous humour
Choose the Odd One Out:
Long answer question
Draw the neat labelled diagram of the Sectional view of the human eye.
The image of an object at an infinite distance is obtained in a real and erect form through a convex magnifying glass.
From where the following nerves arise.
Optic nerve
Arrange and rewrite the term in group in correct order to be in a logical sequence, beginning with the term that is underlined:
Pupil, Aqueous humour, Retina, Vitreous humour.
Assertion (A): Rods and Cones are photoreceptors in the sclera of eyeball.
Reason (R): Rods are sensitive to dim light.
Differentiate between members of the following pair with reference to what is asked in the bracket.
Aqueous humour and vitreous humour (location).
