Biology · Body Fluids and Circulation · NEET
No. Angina pectoris is only a symptom of acute chest pain that appears when the heart muscle does not get enough oxygen. A heart attack is when the heart muscle is suddenly damaged by an inadequate blood supply. Angina is a warning pain; a heart attack is actual muscle damage. NEET expects you to keep these separate.
Heart failure means the heart is still beating but not pumping blood effectively enough to meet the body's needs. Cardiac arrest is when the heart stops beating completely. So in heart failure the pump is weak; in cardiac arrest the pump has stopped. NCERT states clearly that heart failure is not the same as cardiac arrest.
It is called congestive heart failure because congestion (fluid build-up) of the lungs is one of the main symptoms. When the heart cannot pump blood forward properly, blood and fluid back up into the lungs, causing congestion. This lung congestion is the reason for the name.
Angina occurs when not enough oxygen reaches the heart muscle. It results from conditions that affect blood flow to the heart, often narrowing of the coronary arteries (as in coronary artery disease / atherosclerosis). It can occur in men and women of any age but is more common in middle-aged and elderly people.
Yes, indirectly. When the heart muscle lacks oxygen (coronary ischemia), the T-wave of the ECG becomes reduced in size. NEET has tested this exact link: a reduction in the T-wave indicates coronary ischemia, which is the oxygen shortage behind angina.
Match Column-I with Column-II: Column-I: (a) P-wave (b) QRS complex (c) T-wave (d) Reduction in the size of T-wave Column-II: (i) Depolarisation of ventricles (ii) Repolarisation of ventricles (iii) Coronary ischemia (iv) Depolarisation of atria (v) Repolarisation of atria Select the correct option:
Try the real previous-year questions from this chapter — each with the answer and a full solution.
Angina pectoris is acute chest pain that appears when the heart muscle does not receive enough oxygen.
Heart failure is the state of the heart when it is not pumping blood effectively enough to meet the needs of the body.
Angina can occur in men and women of any age, but it is more common among middle-aged and elderly people.
No. Heart failure is a weak, ongoing pumping problem, while a heart attack is sudden damage to the heart muscle from inadequate blood supply.
NEET tests the exact NCERT definitions and the differences between angina, heart attack, heart failure and cardiac arrest, plus the ECG link (reduced T-wave = coronary ischemia).
