Structure of the Eye

BIO5

Pick the structure that matches the description

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1. involuntary muscles which change shape of lens by pulling on suspensory ligament

  • choroid
  • iris
  • ciliary muscles
  • ciliary body
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2. involuntary muscle which controls the amount of light admitted to the retina

  • ciliary muscles
  • iris
  • suspensory ligament
  • sclera

3. thin, transparent layer to protect cornea from infection

  • iris
  • conjunctiva
  • lens
  • pupil

4. bundle of nerve fibres which carry nerve impulses from retina to brain

  • ciliary body
  • fovea
  • optic nerve
  • blind spot

5. where the optic nerve leaves the eye so no light receptors

  • iris
  • blind spot
  • sclera
  • fovea

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