Advertisements
Advertisements
प्रश्न
Name the following:
The fibres which collectively hold the lens in position.
उत्तर
Suspensory ligament
संबंधित प्रश्न
Write the function of retina in human eye.
Draw a neat and labelled diagram of the structure of the human eye.
Match the following:
| Column I | Column II |
| (i) Myopia | (a) Converging power of eye lens becomes low |
| (ii) Hypermetropia | (b) Converging power of eye lens remains the same |
| (c) Converging power of eye lens becomes high |
Give the scientific names of the following parts of the eye:
muscles which change the shape of the eye-lens.
How does the eye change in order to focus on near or distant objects?
(a) The lens moves in or out
(b) The retina moves in or out
(c) The lens becomes thicker or thinner
(d) The pupil gets larger or smaller
Which of the following changes occur when you walk out of bright sunshine into a poorly lit room?
(a) the pupil becomes larger
(b) the lens becomes thicker
(c) the ciliary muscle relaxes
(d) the pupil becomes smaller
State whether the following statement is true or false:
Rabbit has eyes which look sideways.
The region in the eyes where the rods and cones are located is the
Name the following:
White part of the eye.
Define the following:
Blind spot
Choose the correct answer.
In the chemistry of vision, the photosensitive substance is _________________
Choose the correct answer.
Which one is the photoreceptor _____________
Draw a labeled diagram of the front view of human eye.
State the Function:
Vitreous humour
Assertion: Blind spot is a small area of the retina which is insensitive to light where the optic nerve leaves the eye.
Reason: There are no rods or cones present at the junction of the optic nerve and retina in the eye.
Assertion (A): Rods and Cones are photoreceptors in the sclera of eyeball.
Reason (R): Rods are sensitive to dim light.
State the functions of the following:
Ciliary muscles
Which of the following is responsible for the adjustment of the size of pupil?
Write the main functional activity of the following structure.
Choroid
