Understanding Heart Function and Heart Failure

What happens to the blood after it is used by the body?

• It is stored in the body until needed.

• It is pumped to the lungs to be re-oxygenated.

• It is expelled from the body.

• It is pumped back to the left side of the heart.

What is a characteristic of systolic heart failure?

• Increased blood ejection.

• Enlarged heart muscles.

• Weakened and smaller heart muscles.

• Thicker muscle walls.

In diastolic heart failure, why is less blood ejected from the heart?

• The heart pumps too quickly.

• The heart beats too slowly.

• The heart muscles are too large, reducing space for blood.

• The heart muscles are too small.

What symptom is associated with left-sided heart failure?

• Decreased blood pressure.

• Fluid build-up in the feet.

• Fluid build-up in the lungs.

• Increased heart rate.

What is cardiac output?

• The amount of blood pumped per minute.

• The amount of blood pumped per beat.

• The heart rate per minute.

• The amount of oxygen in the blood.

How does the heart compensate for decreased cardiac output in early heart failure?

• By enlarging the heart muscles.

• By increasing stroke volume and heart rate.

• By reducing blood pressure.

• By decreasing heart rate.

What is the normal cardiac output in liters per minute?

• Five liters per minute.

• Seven liters per minute.

• Ten liters per minute.

• Three liters per minute.

What happens to cardiac output when stroke volume decreases?

• It decreases.

• It increases.

• It fluctuates randomly.

• It remains the same.

What is a common cause of heart failure?

• Low cholesterol levels.

• High blood pressure.

• Pre-existing diseases affecting cardiac output.

• Excessive exercise.

What is the role of cardiomyocytes in heart function?

• They control heart rate.

• They regulate blood pressure.

• They are responsible for pumping blood.

• They store oxygen.