18 Questions
Which of the following is NOT considered a living irritant that can cause cell injury?
Acids
Which factor is common in communities with a high prevalence of tuberculosis?
Low standards of nutrition and housing
What is the main cause of primary tuberculosis?
Mycobacterium tuberculosis
In which category does ischemia belong as a cause of cell injury?
Non-living irritants
What type of bacilli are tubercle bacilli?
Acid-fast
Which factor is common in communities with a high prevalence of tuberculosis?
Low standards of nutrition and housing
What is the mode of infection for human tubercle bacilli?
All of the above
What is the basic lesion of tuberculosis?
Tubercle
What happens to neutrophils attracted to the polysaccharide fraction of the bacilli?
They engulf but cannot digest the bacilli
What leads to sensitization of T lymphocytes in tuberculosis?
Interaction with macrophages carrying the bacterial antigenic material
How do small lesions in tuberculosis typically progress?
They are totally replaced by fibrosis
Which statement is true about the exudative tissue reaction in tuberculosis?
Marked by outpouring of fluid exudate containing fibrinogen
What determines the course of infection in secondary tuberculosis?
Both a and b
What is characteristic of primary pulmonary tuberculosis pathology?
Tuberculous Pneumonia
What refers to the tuberculous infection in sensitized individuals?
Secondary Tuberculosis
What is the mechanism of caseation in tuberculosis?
Necrosis of infected macrophages
What are the routes of spread of tuberculosis?
Airborne and bloodborne
What are the complications of tuberculosis?
Miliary tuberculosis and latent tuberculosis infection
Learn about tuberculosis, including its definition, etiology, mode of infection, mechanism of caseation, routes of spread, complications, and types. Gain a comprehensive understanding of this chronic infectious granulomatous disease caused by Mycobacterium tuberculosis.
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