Question:
Assertion (A): Angina pectoris occurs due to transient myocardial ischemia without causing permanent damage to heart muscles.
Reason (R): In coronary artery disease, narrowing of coronary arteries reduces blood supply to myocardium.
Assertion (A): Angina pectoris occurs due to transient myocardial ischemia without causing permanent damage to heart muscles.
Reason (R): In coronary artery disease, narrowing of coronary arteries reduces blood supply to myocardium.
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Angina = Temporary chest pain due to reduced oxygen supply.
Updated On: Jun 6, 2026
- Both (A) and (R) are true. (R) is correct explanation for (A)
- Both (A) and (R) are true. (R) is not correct explanation for (A)
- (A) is true. But (R) is false
- (A) is false. But (R) is true
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The Correct Option is A
Solution and Explanation
Step 1: Concept
Cardiovascular diseases.
Step 2: Meaning
The physiological basis of Angina.
Step 3: Analysis
Angina is defined by transient ischemia to the heart muscle. This is caused by coronary artery disease where arterial narrowing limits oxygenated blood flow (Reason).
Step 4: Conclusion
The reduced blood supply (Reason) is the direct cause of the temporary ischemia (Assertion).
Final Answer: (A)
Cardiovascular diseases.
Step 2: Meaning
The physiological basis of Angina.
Step 3: Analysis
Angina is defined by transient ischemia to the heart muscle. This is caused by coronary artery disease where arterial narrowing limits oxygenated blood flow (Reason).
Step 4: Conclusion
The reduced blood supply (Reason) is the direct cause of the temporary ischemia (Assertion).
Final Answer: (A)
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