Question 1

Which vessel carries oxygenated blood from the lungs back to the heart?

Accepted Answer

Pulmonary vein

Question 2

What is the correct order of blood flow through the heart starting from the right atrium?

Accepted Answer

Right atrium → Tricuspid valve → Right ventricle → Pulmonary valve → Pulmonary artery

Question 3

Which heart valve prevents backflow of blood from the right ventricle to the right atrium?

Accepted Answer

Tricuspid valve

Question 4

Blood leaving the left ventricle passes through which valve before entering the aorta?

Accepted Answer

Aortic valve

Question 5

A patient has a blockage in the pulmonary artery. Which of the following is most likely to occur?

Accepted Answer

Decreased oxygenation of blood in the lungs

Question 6

Which chamber of the heart receives blood directly from the superior and inferior vena cava?

Accepted Answer

Right atrium

Question 7

If the bicuspid (mitral) valve is damaged, which of the following is most likely to occur?

Accepted Answer

Backflow of blood from the left ventricle to the left atrium

Question 8

Which vessel carries deoxygenated blood from the heart to the lungs?

Accepted Answer

Pulmonary artery

Question 9

What is the main function of the aortic valve?

Accepted Answer

To prevent backflow of blood into the left ventricle

Question 10

Which of the following best describes the path of oxygenated blood from the lungs to the body?

Accepted Answer

Pulmonary vein → Left atrium → Bicuspid valve → Left ventricle → Aortic valve → Aorta

Question 11

A patient with a defective tricuspid valve would most likely experience which of the following?

Accepted Answer

Backflow of blood from the right ventricle to the right atrium

Question 12

Which of the following equations best represents the cardiac output ($$CO) if $$heart rate ($$HR) is 70 $$beats/min and stroke volume ($$SV) is 70 mL/$$beat?

Accepted Answer

$$CO = HR 	imes SV$$

Question 13

If a patient’s left ventricle is not functioning properly, which of the following is most likely to occur?

Accepted Answer

Decreased blood flow to the systemic circulation

Question 14

Which of the following best describes the function of the pulmonary valve?

Accepted Answer

Prevents backflow of blood into the right ventricle

Question 15

A patient with a clot in the inferior vena cava would most likely have impaired blood flow to which chamber?

Accepted Answer

Right atrium

Step-by-Step Guidance: Blood Flow Through the Heart

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