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Angina pectoris is chest pain caused by reduced blood flow to the heart muscles due to narrowed coronary arteries.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Regulation and Disorders of Circulatory System
Arrhythmia is a condition where the heartbeat is irregular, either too fast or too slow.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Regulation and Disorders of Circulatory System
Bradycardia is a condition where the heart rate is slower than normal due to SA node dysfunction.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Regulation and Disorders of Circulatory System
Atherosclerosis is caused by the accumulation of cholesterol plaques in coronary arteries, reducing blood flow to the heart.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Lymph and Circulatory Pathways
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