Pathology MCQs
Pathology MCQs are designed to test a student's understanding of disease mechanisms, histopathology, and clinical correlations. Questions range from general pathology to systemic diseases affecting organs like the liver, lungs, heart, and kidneys. Ideal for MDCAT, NTS, USMLE, and FCPS aspirants, these quizzes help reinforce critical concepts and bridge the gap between theory and clinical application.
Q: Cellular adaptation in response to chronic irritation
A) Hypertrophy
B) Metaplasia
C) Atrophy
D) Hyperplasia
✅ Correct Answer: B
Explanation: Metaplasia is the reversible replacement of one differentiated cell type with another better suited to withstand stress.
Q: Accumulation of lipofuscin is a marker of
A) Infection
B) Proliferation
C) Inflammation
D) Aging
✅ Correct Answer: D
Explanation: Lipofuscin is a yellow-brown pigment resulting from the breakdown of lipid-containing structures during aging.
Q: Apoptosis differs from necrosis by involving
A) Cell swelling
B) DNA fragmentation
C) Inflammatory response
D) Rupture of plasma membrane
✅ Correct Answer: B
Explanation: Apoptosis is a regulated process involving DNA fragmentation without eliciting an inflammatory response.
Q: Hypertrophy is best exemplified by
A) Liver regeneration
B) Skeletal muscle in athletes
C) Uterine lining during menstruation
D) Breast tissue during lactation
✅ Correct Answer: B
Explanation: Skeletal muscle cells enlarge in response to increased workload, illustrating hypertrophy.
Q: Major hallmark of inflammation
A) Vasodilation
B) Fibrosis
C) Ischemia
D) Cell death
✅ Correct Answer: A
Explanation: Vasodilation increases blood flow to the affected area, a classic feature of acute inflammation.
Q: The first cell type to arrive at the site of acute inflammation
A) Eosinophil
B) Macrophage
C) Lymphocyte
D) Neutrophil
✅ Correct Answer: D
Explanation: Neutrophils are the first responders in acute inflammatory responses.
Q: Exudate is distinguished from transudate by
A) Absence of inflammation
B) Lack of cells
C) High specific gravity
D) Low protein content
✅ Correct Answer: C
Explanation: Exudate has high protein content and specific gravity due to increased vascular permeability during inflammation.
Q: Role of bradykinin in inflammation
A) Vasodilation and pain
B) Clot formation
C) Chemotaxis
D) Phagocytosis
✅ Correct Answer: A
Explanation: Bradykinin causes vasodilation and induces pain, contributing to the inflammatory response.
Q: Fibrinoid necrosis is commonly seen in
A) Rheumatic fever
B) Hypertensive vascular disease
C) Liver cirrhosis
D) Gout
✅ Correct Answer: B
Explanation: Fibrinoid necrosis is typical in immune-mediated vascular damage like in malignant hypertension.
Q: Cells responsible for tissue remodeling in wound healing
A) Neutrophils
B) Macrophages
C) Mast cells
D) Fibroblasts
✅ Correct Answer: D
Explanation: Fibroblasts produce collagen and extracellular matrix essential for tissue remodeling.