Organ Adaptation Principles Quiz
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Questions and Answers

Which statement about hypertrophy is accurate?

  • Hypertrophy always involves an increase in the number of cells.
  • Hypertrophy is exclusively caused by a decrease in organ stress.
  • Hypertrophy is always reversible.
  • Hypertrophy involves gene activation, protein synthesis, and production of organelles. (correct)
  • Hypertrophy only occurs in permanent tissues like cardiac muscle and nerve.
  • What is a characteristic of pathologic hyperplasia?

  • It is exclusive to permanent tissues like cardiac muscle.
  • It is a normal and healthy response to increased stress on an organ.
  • It can progress to dysplasia and eventually cancer. (correct)
  • It is always reversible with appropriate treatment.
  • It involves a decrease in the number of cells in an organ.
  • What is the primary difference between hyperplasia and hypertrophy?

  • Hyperplasia involves an increase in the number of cells, while hypertrophy involves an increase in cell size. (correct)
  • Hyperplasia involves a decrease in organ size, while hypertrophy involves an increase.
  • Hyperplasia is always reversible, while hypertrophy is irreversible.
  • Hyperplasia is exclusively caused by a decrease in organ stress, while hypertrophy is caused by an increase in stress.
  • Hyperplasia only occurs in permanent tissues, while hypertrophy occurs in all organs.
  • Which statement about growth adaptations is true?

    <p>An increase, decrease, or change in stress on an organ can result in growth adaptations.</p> Signup and view all the answers

    In what way do hyperplasia and hypertrophy generally occur together?

    <p>For example, the uterus undergoes both hyperplasia and hypertrophy during pregnancy.</p> Signup and view all the answers

    What is the process by which the esophagus changes from nonkeratinizing squamous epithelium to nonciliated, mucin-producing columnar cells?

    <p>Metaplasia</p> Signup and view all the answers

    Under persistent stress, what can metaplasia progress to?

    <p>Neoplasia</p> Signup and view all the answers

    What is necessary for the differentiation of specialized epithelial surfaces such as the conjunctiva covering the eye?

    <p>Vitamin A</p> Signup and view all the answers

    Which condition may progress to adenocarcinoma of the esophagus?

    <p>Barrett esophagus</p> Signup and view all the answers

    In theory, what can reverse metaplasia?

    <p>Removal of the driving stressor</p> Signup and view all the answers

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