TOPIC- SENSE ORGANS Flashcards

1
Q

What are the different layers of the eye

A
  1. Outermost- Sclera
  2. Middle layer- Choroid
  3. Innermost retina
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2
Q

Which layer is k/a White of the eye

A

Sclera

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3
Q

Cornea is a reflecting/refracting structure

A

Refracting

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4
Q

Choroid looks ___ in colour

A

Bluish

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5
Q

The diameter of pupil is located by

A

Iridial muscles

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6
Q

What is the role of Choroid layer

A

To prevent reflections of light rays within the eyes

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7
Q

The actual light receptors of the eye are

A

Roda and cone

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8
Q

The retina consists of two portions, they are

A
  1. Pigment epithelium- non visual portion
  2. Neural portion- visual portion
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9
Q

Cones are responsible for ___ vision

A

Photopic vision

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10
Q

Rods are responsible for___ vision

A

Twilight/ scotopic vision

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11
Q

What is the pigment in rod

A

Rhodopsin or Visual purple

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12
Q

Rhodopsin consists of two parts they are

A
  1. A protein molecule- opsin/ Scotopsin
  2. Molecule of carotenoid - retinal
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