20 Questions
What is the primary cause of tuberculosis?
Mycobacterium tuberculosis
Which of the following is NOT considered a living irritant that can cause cell injury?
Acids
In which communities is tuberculosis more common?
Communities with low standards of nutrition and housing
Which stain is best used for staining tubercle bacilli?
Ziehl-Neelsen stain
What type of bacilli are tubercle bacilli?
Gram-positive, acid-fast
Which of the following is a predisposing factor for tuberculosis?
Low standard of nutrition
What are the primary living irritants that can cause cell injury?
Bacteria, viruses, parasites, fungi
Which of the following is a non-living irritant?
Excess heat
What is the primary cause of tuberculosis in communities with low standards of nutrition and housing?
Human tubercle bacilli
What are the best stains used for staining tubercle bacilli?
Ziehl-Neelsen stain
What is the basic lesion of tuberculosis?
Proliferative tissue reaction
How are tubercles formed in tuberculosis?
By engulfing the bacilli by macrophages and alteration into epithelioid cells
Which mode of infection leads to lung tuberculosis?
Inhalation of contaminated dust
What is the mechanism of caseation in tuberculosis?
Hypersensitivity (cytotoxic lymphokines)
Which type of tuberculosis mainly affects adults in Egypt?
Secondary Tuberculosis
In primary pulmonary tuberculosis, what is the initial tuberculous lung lesion called?
Ghon's Focus
What is the fate of primary tuberculosis?
Localization and healing
What are the factors influencing the course of TB?
Immunity & Hypersensitivity
What is the bacterial effect on tissues in tuberculosis?
Tuberculoprotein causes destructive lesions attributed to hypersensitivity reactions.
In which mode of infection are bacteria expectorated in sputum of patients having pulmonary tuberculosis?
Inhalation of contaminated dust.
Learn about the definition, etiology, mode of infection, mechanism of caseation, routes of spread, complications, and types of tuberculosis in this lecture on chronic inflammation. Understand the chronic infectious granulomatous disease caused by Mycobacterium tuberculosis.
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