Notes – All Exams | 15+ Categories | 200 Practice
Questions with Answers & Detailed Rationales |
Hyperlinked | Updated for 2025/2026 | Graded
A+
📚 NAVIGATION – 15+ CATEGORIES (HYPERLINKED)
# Category Questions
I Cellular Biology & Adaptation 1-15
II Genetics & Chromosomal Disorders 16-30
III Inflammation & Immunity 31-50
IV Neoplasia & Cancer Biology 51-60
V Fluid & Electrolyte Balance 61-75
VI Acid-Base Disorders 76-85
VII Cardiovascular Pathophysiology 86-105
VIII Respiratory Disorders 106-120
IX Renal & Urinary System 121-135
X Endocrine Disorders 136-150
XI Neurological Pathophysiology 151-165
XII Gastrointestinal Disorders 166-175
, # Category Questions
XIII Hematologic Disorders 176-185
XIV Musculoskeletal Disorders 186-195
XV Infectious Disease & Sepsis 196-200
I. CELLULAR BIOLOGY & ADAPTATION (Questions 1-15)
1. A patient with long-standing hypertension develops concentric left
ventricular hypertrophy. Which mechanism primarily drives this
structural change?
• A. Increased preload from volume overload
• B. Chronic pressure overload leading to myocardial fiber thickening
• C. Decreased afterload resulting in chamber dilation
• D. Increased sympathetic stimulation causing myocyte apoptosis
Answer: B – Chronic pressure overload leading to myocardial fiber
thickening
Rationale: Chronic pressure overload, such as from hypertension, stimulates
myocardial cells to thicken (concentric hypertrophy) in order to reduce wall
stress.This is a pathologic hypertrophy that can eventually lead to heart
failure if compensatory mechanisms fail.
2. A patient who has been on prolonged bed rest develops decreased
muscle mass in the lower extremities. This represents which form of
cellular adaptation?
, • A. Hyperplasia
• B. Hypertrophy
• C. Atrophy
• D. Metaplasia
Answer: C – Atrophy
Rationale: Atrophy is a decrease in cell size resulting from reduced
workload, disuse, denervation, ischemia, or inadequate nutrition.Prolonged
bed rest leads to disuse atrophy of skeletal muscles. This is a reversible
process if normal activity is resumed.
3. A bodybuilder's enlarged muscles are the result of which cellular
adaptation?
• A. Hyperplasia of muscle fibers
• B. Hypertrophy of existing muscle fibers
• C. Metaplasia of connective tissue into muscle
• D. Dysplasia of muscle cell nuclei
Answer: B – Hypertrophy of existing muscle fibers
Rationale: Bodybuilders develop larger muscles through hypertrophy
(increase in the SIZE of existing muscle fibers), not an increase in the
number of muscle fibers (hyperplasia). Adult skeletal muscle cells cannot
undergo hyperplasia; they enlarge in response to increased workload.
4. Which of the following is an example of physiologic hyperplasia?
• A. Enlargement of the heart due to chronic hypertension
• B. Uterine enlargement during pregnancy
• C. Thickening of the bladder wall due to urinary obstruction
• D. Prostatic hyperplasia in aging males