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प्रश्न
Name the following:
The part of the eye responsible for its shape.
उत्तर
sclera
संबंधित प्रश्न
Define the term.
Power of accommodation of the eye.
Answer briefly:
How do you perceive the colour of an object?
The region of the vertebrate eye, where the optic nerve passes out of the retina, is called the
(a) fovea
(b) iris
(c) blind spot
(d) optic chaisma
Describe the anatomy of the human eye.
What job does the pupil of the eye do?
What are rods and cones in the retina of an eye? Why is our night vision relatively poor compared to the night vision of an owl?
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
What shape are your eye-lenses:
when you look at a distant tree?
Nocturnal animals (animals which sleep during the day and come out at night) tend to have wide pupils and lot of rods in their retinas. Suggest reasons for this.
The animal which does not have eyes that look sideways is:
(a) Horse
(b) Chicken
(c) Lion
(d) Fish
The animals of prey have:
(a) two eyes at the front
(b) two eyes at the back
(c) two eyes on the sides
(d) one eye at the front and one on the side
Given below is certain structure. Write against them its functional acivity.
retina and ……………………….
Give the main function of the following:
Fovea centralis
Choose the correct answer :
The rods and cones of a vertebrate retina function is to _________
Answer the following question.
Write the structure of eye lens and state the role of ciliary muscles in the human eye.
Name the following:
Yellow spot and ciliary muscles are found in.
A small hole of changing diameter at the centre of Iris is called _______.
For a healthy human eye, the distant point is infinite distance.
The coloured portion of the eye is the ______.
Chris was watching the display of fireworks in the sky.
- Trace the path of the light rays using the following terms:
Fovea, Lens, Conjunctiva, Pupil, Cornea. - Name the nerve that carries the impulse for vision to the brain.
