Chapter 11: Vitamin A Deficiency Pathological Changes

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Questions and Answers

What is the primary pathological change in Vitamin A deficiency related to the eye?

  • Night blindness
  • Retardation of growth in children
  • Squamous metaplasia in the trachea
  • Hyperkeratosis in the skin (correct)

Which of the following is a common pathological effect of Vitamin A deficiency in the respiratory system?

  • Dryness of the eye
  • Hyperkeratosis in the skin
  • Retardation of growth in children
  • Squamous metaplasia in the trachea (correct)

What is the characteristic deformity seen in Rickets?

  • Dryness of the eye
  • Failure of deposition of calcium and phosphorus in the osteoid tissue of newly formed bone (correct)
  • Squamous metaplasia in the trachea
  • Hyperkeratosis in the skin

Who is more susceptible to Rickets due to inadequate calcium storage?

<p>Children with chronic renal diseases (A)</p> Signup and view all the answers

Which age group experiences the maximum incidence of Rickets?

<p>Young children in the first two years of life (B)</p> Signup and view all the answers

What is the characteristic feature of the cartilage in rickets?

<p>Uncalcified with proliferating cells (B)</p> Signup and view all the answers

Which skeletal feature is characteristic of rickets in the chest area?

<p>Bead-like nodules at the costochondral junctions (C)</p> Signup and view all the answers

In rickets, what happens to the pelvic bones due to the pressure from femur heads?

<p>They become trifoil-shaped (A)</p> Signup and view all the answers

Which condition is used to describe forward bending in the lumbar region in rickets?

<p>Lordosis (A)</p> Signup and view all the answers

What causes the square shape of the skull in rickets?

<p>Proliferating cartilage cells (B)</p> Signup and view all the answers

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