General Pathology-2: Chronic Inflammation Tuberculosis Lecture
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Questions and Answers

What is the primary cause of tuberculosis?

  • Mycobacterium tuberculosis (correct)
  • Fungi
  • Virus
  • Parasite

    • Which of the following is NOT considered a living irritant that can cause cell injury?

  • Acids (correct)
  • Viruses
  • Bacteria
  • Parasites

    • In which communities is tuberculosis more common?

  • Urban communities
  • Communities with high standards of nutrition and housing
  • Rural communities
  • Communities with low standards of nutrition and housing (correct)

    • Which stain is best used for staining tubercle bacilli?

    <p>Ziehl-Neelsen stain</p> Signup and view all the answers

    What type of bacilli are tubercle bacilli?

    <p>Gram-positive, acid-fast</p> Signup and view all the answers

    Which of the following is a predisposing factor for tuberculosis?

    <p>Low standard of nutrition</p> Signup and view all the answers

    What are the primary living irritants that can cause cell injury?

    <p>Bacteria, viruses, parasites, fungi</p> Signup and view all the answers

    Which of the following is a non-living irritant?

    <p>Excess heat</p> Signup and view all the answers

    What is the primary cause of tuberculosis in communities with low standards of nutrition and housing?

    <p>Human tubercle bacilli</p> Signup and view all the answers

    What are the best stains used for staining tubercle bacilli?

    <p>Ziehl-Neelsen stain</p> Signup and view all the answers

    What is the basic lesion of tuberculosis?

    <p>Proliferative tissue reaction</p> Signup and view all the answers

    How are tubercles formed in tuberculosis?

    <p>By engulfing the bacilli by macrophages and alteration into epithelioid cells</p> Signup and view all the answers

    Which mode of infection leads to lung tuberculosis?

    <p>Inhalation of contaminated dust</p> Signup and view all the answers

    What is the mechanism of caseation in tuberculosis?

    <p>Hypersensitivity (cytotoxic lymphokines)</p> Signup and view all the answers

    Which type of tuberculosis mainly affects adults in Egypt?

    <p>Secondary Tuberculosis</p> Signup and view all the answers

    In primary pulmonary tuberculosis, what is the initial tuberculous lung lesion called?

    <p>Ghon's Focus</p> Signup and view all the answers

    What is the fate of primary tuberculosis?

    <p>Localization and healing</p> Signup and view all the answers

    What are the factors influencing the course of TB?

    <p>Immunity &amp; Hypersensitivity</p> Signup and view all the answers

    What is the bacterial effect on tissues in tuberculosis?

    <p>Tuberculoprotein causes destructive lesions attributed to hypersensitivity reactions.</p> Signup and view all the answers

    In which mode of infection are bacteria expectorated in sputum of patients having pulmonary tuberculosis?

    <p>Inhalation of contaminated dust.</p> Signup and view all the answers

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