Author Question: Which structure has four layers: epithelial cells, substantia propria, elastic lamina, and ... (Read 88 times)

gonzo233

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Which structure has four layers: epithelial cells, substantia propria, elastic lamina, and endothelial cells?
 a. cornea
  b. crystalline lens
  c. macula
  d. retina

Question 2

What structure is avascular, external, and its function is to refract light rays?
 a. iris
  b. sclera
  c. retina
  d. cornea



frankwu0507

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Answer to Question 1

a

Answer to Question 2

d



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