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प्रश्न
Write the function of the following part of the human eye:- iris
उत्तर १
The function of iris:- It is a dark, muscular diaphragm that controls the size of the pupil.
उत्तर २
Iris: The iris regulates and controls the amount of light entering the eye by automatically adjusting the size of the pupil according to the intensity of light that the eye receives. It also gives colour to the eye.
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संबंधित प्रश्न
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(i) Cornea
(ii) Iris
(iii) Pupil
(iv) Retina
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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 |
Which of the following is responsible for the adjustment of the size of pupil?
