Circulatory Disorders — NEET Biology MCQs with Solutions
Free NEET Biology Circulatory Disorders MCQs with step-by-step solutions (6 questions). Part of Body Fluids and Circulation. Practise online on Prepizo — no login needed.
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Questions with solutions
Q1 — Circulatory Disorders · easy · theory
Persistently high blood pressure (e.g. above 140/90 mmHg) is called:
A. Hypertension ✓ Correct
B. Anaemia
C. Hypotension
D. Angina
Solution: Hypertension is high blood pressure (normal ≈ 120/80 mmHg), a major risk factor for heart disease.
Q2 — Circulatory Disorders · easy · theory
Chest pain due to insufficient oxygen reaching the heart muscle is called:
A. Oedema
B. Hypertension
C. Angina (pectoris) ✓ Correct
D. Leukaemia
Solution: Angina pectoris is acute chest pain from inadequate oxygen supply to the myocardium.
Q3 — Circulatory Disorders · medium · theory
The deposition of calcium, fat and fibrous tissue narrowing the arteries is called:
A. Anaemia
B. Thrombosis of lymph
C. Atherosclerosis ✓ Correct
D. Arteriosclerosis of veins
Solution: Atherosclerosis narrows/hardens arteries, raising blood pressure and risk of coronary artery disease.
Q4 — Circulatory Disorders · medium · theory
Coronary Artery Disease (CAD) affects the vessels that supply blood to the:
A. Kidneys
B. Lungs
C. Brain
D. Heart muscle (myocardium) ✓ Correct
Solution: CAD (atherosclerosis) narrows the coronary arteries that supply the heart muscle itself.
Q5 — Circulatory Disorders · hard · theory
A "heart attack" (myocardial infarction) occurs when:
A. The heart beats too slowly
B. The valves leak slightly
C. Blood supply to a part of the heart muscle is blocked, causing muscle death ✓ Correct
D. Blood pressure drops suddenly
Solution: A blocked coronary artery deprives cardiac muscle of oxygen, causing its death (infarction).
Q6 — Circulatory Disorders · hard · theory
The normal human blood pressure is about ______; the higher value represents ______ pressure:
A. 120/80 mmHg; systolic ✓ Correct
B. 80/120 mmHg; diastolic
C. 100/60 mmHg; systolic
D. 140/100 mmHg; diastolic
Solution: Normal BP ≈ 120/80 mmHg — 120 (systolic, ventricular contraction) over 80 (diastolic, relaxation).