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प्रश्न
Where is the following located?
Yellow spot
उत्तर
The yellow spot lies at the back of the eye, almost at the centre of the horizontal axis of the eyeball.
संबंधित प्रश्न
A person got his eyes tested by an optician. The prescription for the spectacle lenses to be made reads :
Left eye : +2.50 D
Right eye : +2.00 D
Which lens bends the light rays more strongly?
What is the:
far point of a normal human eye?
What is the:
near point of a normal human eye?
Name the part of our eyes which helps us to focus near and distant objects in quick succession.
Give the scientific names of the following parts of the eye:
carries signals from an eye to the brain.
What changes take place in the shape of eye-lens:
when the eye is focused on a distant object?
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?
Out of animals of prey and predators, which have their eyes:
at the front of their head?
Given below is a set of five parts. Rewrite them in correct sequence.
Conjunctiva, retina, cornea, optic nerve, lens.
Sometimes you remember a vivid picture of a dream you saw. What is the role of your eyes in this experience?
We see advertisements for eye donation on television or in newspapers. Write the importance of such advertisements.
Answer the following question.
Write the structure of eye lens and state the role of ciliary muscles in the human eye.
Write the function of the human eye and label parts of the figure given below.
Name the part of the eye which gives colour to the eyes.
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 |
Given below is a cross section of the human eye. Match the structures marked (a) to (e) with their correct functions:
Example: (f) - 6. Holds the lens in position
| Cross section of Human Eye | Functions | |
 |
1. | Protects retina |
| 2. | Regulates the size of the pupil | |
| 3. | Alters the shape of the lens | |
| 4. | Keeps the lens moist | |
| 5. | Transmits nerve impulses to brain | |
| 6. | Holds the lens in position |
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.
Name the following:
The circular opening enclosed by iris.
With reference to human eye answer the question that follow:
Name the part of the eye associated with keeping the lens moist and protecting it from physical shock.
