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

What type of bacilli are tubercle bacilli?

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

Which of the following is a predisposing factor for tuberculosis?

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

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

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

Which of the following is a non-living irritant?

<p>Excess heat (A)</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 (C)</p> Signup and view all the answers

What are the best stains used for staining tubercle bacilli?

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

What is the basic lesion of tuberculosis?

<p>Proliferative tissue reaction (B)</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 (A)</p> Signup and view all the answers

Which mode of infection leads to lung tuberculosis?

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

What is the mechanism of caseation in tuberculosis?

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

Which type of tuberculosis mainly affects adults in Egypt?

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

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

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

What is the fate of primary tuberculosis?

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

What are the factors influencing the course of TB?

<p>Immunity &amp; Hypersensitivity (C)</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. (D)</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. (C)</p> Signup and view all the answers

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