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ExamsNEETBiology

Retina is the innermost layer of eyeball and it contains three layers of cells - ganglion cells, bipolar cells and photoreceptor cells. Photoreceptor cells are not present in blind spot. The space between the cornea and the lens is called the aqueous chamber and contains a thin watery fluid called aqueous humor. Choroid is anterior part of external sclera layer of eyeball while ciliary body is anterior part of middle choroid layer.

  1. Retina is the outermost layer of the eyeball.
  2. Retina contains only one layer of cells.
  3. Retina is the innermost layer of the eyeball.
  4. Retina is the middle layer of the eyeball.

Correct answer: Retina is the innermost layer of the eyeball.

Solution

The retina is the neural layer that lines the inside of the eyeball, so it is the innermost coat. The other layers are the outer fibrous layer and the middle vascular layer.

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