Blind spot is not

  1. Photoreceptor cells are not present in blind spot
  2. Retinal blood vessels enter at that point
  3. Optic nerves leave the eye at this point
  4. Is slightly below the posterior pole of the eyeball.
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Yellow spot of eye is

  1. At the posterior pole of the eyeball which is lateral to the blind spot
  2. At the anterior pole of the eyeball which is above to the blind spot
  3. At the anterior pole of the durbal which is lateral the blind spot
  4. At the posterior pole of the eyeball which is below the blind spot
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Macula lutea …a...

Fovea…b....

  1. Yellow spot, dark spot
  2. Yellow spot, pit
  3. Pit, yellow spot
  4. Dark spot, pit
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Fovea is not

  1. Central pit of yellow spot
  2. Thinned out portion of the retina
  3. Only cones are densely packed here
  4. Visual acuity is least here
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The greatest resolution or visual acuity is found in

  1. Fovea
  2. Yellow spot
  3. Blind spot
  4. Retina
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Aqueous humor is found in

  1. The space between cornea and the lens
  2. The space between choroid and lens
  3. The space between retina and lens
  4. The space between sclera and lens
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Vitreous humor is found in vitreous chamber

  1. Between lens and retina
  2. Between cornea and lens
  3. Between sclera and lens
  4. Between choroid and lens
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Aqueous humor is

  1. Thin watery fluid
  2. Thick watery fluid
  3. Transparent gel
  4. Translucent gel
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Vitreous humor is

  1. Thin watery fluid
  2. Thick watery fluid
  3. Transparent gel
  4. Translucent gel
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These are events of mechanism of vision. Arrange them in order.

a. Light rays are focussed on retina

b. Dissociation of the retinal and of opsin

c. Generation of impulses in rods and cones

d. Changes in the structure of the opsin

e. Generation of potential difference

f. Change in membrane permeability

g. Transmission of action potential by the optic nerves to the visual cortex area of the brain

h. Generation of action potential in photoreceptors

I. image formation in retina and recognition based on earlier memory and experience.

 

  1. a-c-b-d-f-e-h-g-l
  2. a-b-c-d-e-f-g-h-I
  3. b-c-d-e-f-I-g-a-h
  4. b-d-c-f-g-I-a-e-h
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