Ocular Biology: Outer Tunics of the Eye
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Questions and Answers

What is the shape of the endothelial cells in the cornea?

  • Columnar
  • Squamous
  • Cuboidal
  • Flattened epithelial-like (correct)
  • What is the purpose of the pinocytotic vesicles in the endothelial cells of the cornea?

  • To produce the basement membrane
  • To regulate corneal temperature
  • To regulate corneal hydration (correct)
  • To secrete enzymes for corneal digestion
  • What is the arrangement of endothelial cells in the cornea in young individuals?

  • Regular hexagonal (correct)
  • Linear and uniform
  • Random and irregular
  • Scattered and clumped
  • What happens to the endothelial cells in the cornea with age?

    <p>They become fewer in number with heterogeneous size and shape</p> Signup and view all the answers

    What is unique about the cell membranes of endothelial cells in the cornea?

    <p>They show interdigitation with zonular occludents</p> Signup and view all the answers

    What is the function of the endothelial cells in the cornea in terms of corneal hydration?

    <p>To transport materials to maintain corneal hydration</p> Signup and view all the answers

    What is the response of adjacent endothelial cells to cell loss in the cornea?

    <p>They spread to fill the gaps</p> Signup and view all the answers

    What is the thickness of the endothelial cells in the cornea?

    <p>5 μm</p> Signup and view all the answers

    What is unique about the basement membrane of the endothelial cells in the cornea?

    <p>It is absent</p> Signup and view all the answers

    What can cause a decrease in corneal endothelial cell density?

    <p>Damage to corneal endothelial cells</p> Signup and view all the answers

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