Topic 5- The Iris Reflex

Descripción

-What is the iris reflex -Reflex when bright light -Reflex when dim light -Diagrams showing bright and dim light differences
Rose Tarnowski
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Rose Tarnowski
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Topic 5- The Iris Reflex
  1. What is the iris reflex?
    1. very bright light can damage the retina so you have the iris reflex to protect the retina
    2. Bright Light
      1. Radial muscles of the iris relaxed
        1. Circular muscles of the iris contracted
          1. Contracted pupil (less light enters the eye)
          2. Dim Light
            1. Radial muscles of the iris contracted
              1. Circular muscles of the iris relaxed
                1. Dilated pupil (more light enters the eye)
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