Q41 / 244 · NTA Abhyas (NEET) 2020 · Zoology · Neural Control and Coordination

The inner layer of the eye is __(i)__ which contains layers of cells from inside to outside in an order (ii):

  • Correct answer
    A
    i: Retina; (ii) Ganglion cells → Bipolar cells → Photoreceptor cells
  • B
    i: Cornea; (ii) Ganglion cells → Photoreceptor cells → Bipolar cells
  • C
    i: Retina; (ii) Photoreceptor cells → Bipolar cells → Ganglion cells
  • D
    i: Cornea; Photoreceptor cells → Bipolar cells → Ganglion cells

Solution

Being part of the retina, bipolar cells exist between photoreceptors and ganglion cells. They act, directly or indirectly, to transmit signals from the photoreceptors to the ganglion cells. A radial section of the retina reveals the ganglion cells (the output neurons of the retina) lie innermost in the retina closest to the lens, and the photosensors (the rods and cones) lie outermost. 
Figure
The cornea is the transparent part of the eye that covers the front portion of the eye.
 

Hence, the correct answer is option: 'A'.

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