Problem 135 - Objective Biology for NEET

Question

Match the Column I with Column II: Column I A. Heart failure B. Cardiac arrest C. Heart Attack D. Coronary Artery disease E. Angina pectoris Column II 1\. Heart muscle is suddenly damaged by an inadequate blood supply. 2\. Chest pain due to inadequate \(\mathrm{O}_{2}\) reaching the heart muscles. 3\. Atherosclosis 4\. Heart not pumping blood effectively enough to meet the needs of the body (CAD). 5\. Heart stops beating $$ \begin{array}{|c|c|c|c|c|c|} \hline & \mathrm{A} & \mathrm{B} & \mathrm{C} & \mathrm{D} & \mathrm{E} \\ \hline \text { (a) } & 4 & 5 & 1 & 3 & 2 \\ \hline \text { (b) } & 4 & 5 & 3 & 1 & 2 \\ \hline \text { (c) } & 4 & 3 & 5 & 2 & 1 \\ \hline \text { (d) } & 5 & 4 & 2 & 3 & 1 \\ \hline \end{array} $$

Step-by-Step Solution

Answer

The correct match of column I to column II is A-4, B-5, C-1, D-3, E-2. Therefore, correct option is (a).

Step 1: Match Heart Failure to its Accurate Description

Heart failure, from Column I, can be matched with its definition in Column II: Heart not pumping blood effectively enough to meet the needs of the body (CAD). Hence, A matches with 4.

Step 2: Match Cardiac Arrest to its Accurate Description

Cardiac Arrest is matched with its definition in Column II: Heart stops beating. Hence, B matches with 5.

Step 3: Match Heart Attack to its Accurate Description

Third term from Column I, Heart Attack is defined in the Column II: Heart muscle is suddenly damaged by an inadequate blood supply. Hence, C matches with 1.

Step 4: Match Coronary Artery Disease to its Accurate Description

Coronary Artery Disease from Column I can be matched with the term Atherosclosis from Column II. Hence, D matches with 3.

Step 5: Match Angina Pectoris to its Accurate Description

Finally, Angina Pectoris from Column I matches with the description Chest pain due to inadequate \(\mathrm{O}_{2}\) reaching the heart muscles from Column II. Hence, E matches with 2.

Key Concepts

Heart Failure

Heart failure is a condition where the heart isn't able to pump blood as efficiently as it should. This means the body doesn't get enough oxygen and nutrients it needs to function properly. Think of the heart as a pump that pushes blood through the bloodstream to deliver oxygen and nutrients to every cell. When this pump becomes weak or stiff, it can’t keep up with the body's demands.
Causes of heart failure can include:

• High blood pressure causing the heart muscle to become too stiff or thick.
• Coronary artery disease blocking the blood supply to the heart muscle.
• Heart attacks damaging a part of the heart muscle.

Common symptoms include fatigue, breathlessness, and swelling in the legs, ankles, or abdomen. Treatments usually involve lifestyle changes, medications, and sometimes devices or surgery to help the heart function better.

Cardiac Arrest

Cardiac arrest is a severe medical emergency where the heart stops beating unexpectedly. If the heart stops, blood stops flowing to the brain and other vital organs, which can lead to death if not treated immediately.
One should not confuse cardiac arrest with a heart attack, although a heart attack can sometimes lead to cardiac arrest. Key triggers of cardiac arrest include:

• Electrical malfunction in the heart causing irregular heartbeats.
• Heart disease such as coronary artery disease or heart attack.
• Extreme physical stress or certain inherited heart disorders.

Immediate CPR and defibrillation are critical to save someone undergoing cardiac arrest.

Heart Attack

A heart attack occurs when the blood supply to a part of the heart is blocked, usually by a blood clot. This interruption of blood flow can damage the heart muscle.
Unlike cardiac arrest, the heart usually doesn’t stop beating entirely, but it becomes seriously impaired as heart tissue begins to die.
The warning signs of a heart attack can include:

• Chest pain or discomfort.
• Pain in the arms, neck, jaw, shoulder, or back.
• Shortness of breath, nausea, or dizziness.

Immediate medical assistance is crucial to restore blood flow and minimize heart damage.

Coronary Artery Disease

Coronary artery disease (CAD) is the most common type of heart disease. It happens when the coronary arteries become narrowed or blocked by a buildup of cholesterol and fatty deposits known as atherosclerosis. These arteries supply your heart muscle with oxygen-rich blood.
The plaque buildup narrows the arteries, reducing blood flow to the heart.
Signs of coronary artery disease include chest pain (angina), shortness of breath, and other heart-related symptoms. Lifestyle changes, medications, and surgeries like angioplasty or coronary artery bypass may be needed to restore blood flow.

Angina Pectoris

Angina pectoris, commonly called angina, is chest pain or discomfort that occurs when your heart muscle doesn't get enough oxygen-rich blood. It is often a symptom of coronary artery disease.
Angina can be triggered by physical exertion or stress, which increases the heart's demand for oxygen, but the narrowed arteries can’t supply enough.
It typically causes:

• Pressure or squeezing pain in the chest.
• Pain in shoulders, arms, neck, or back.
• Short periods of pain that can usually be relieved by rest or medication.

While angina itself is not a heart attack, it indicates a higher risk of a heart attack in the future. Management involves lifestyle modifications, medications, and possibly procedures to improve blood flow.