Parts A, B, C and D of the human eye are shown in the diagram.Select the option which gives correct identification along with its functions/characteristics:
Correct answer: C. A - Retina - Contains photoreceptors i.e.rods and cones.
- A. C-Aqueous chamber - Reflects the light which does not pass through the lens
- B. D- Choroid - Its anterior part forms the ciliary body
- C. A - Retina - Contains photoreceptors i.e.rods and cones.
- D. B-Blind spot - Has only a few rods and cones.
Explanation
In the given figure, A is the retina which is the innermost layer, containing photoreceptors rods and cones. B is the blind spot. Optic nerves pierce through the retina at the blind spot. It has no visual cells. C is aqueous humour. It nourishes the cornea and lens both of which are avascular. D is the sclera. It is the outermost covering and maintains the shape of an eyeball. It also protects the inner layers of the eye.
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