Question 1

Which structure receives deoxygenated blood directly from the superior and inferior vena cava?

Accepted Answer

Right atrium

Question 2

During ventricular systole, which valve prevents backflow of blood into the left ventricle?

Accepted Answer

Aortic semilunar valve

Question 3

Which phase of the cardiac cycle is associated with the highest pressure in the left ventricle?

Accepted Answer

Ventricular systole

Question 4

What is the primary function of the coronary arteries?

Accepted Answer

Supply oxygenated blood to the heart muscle itself

Question 5

Which of the following best explains why the left ventricular wall is thicker than the right ventricular wall?

Accepted Answer

It pumps blood to the entire body, requiring higher pressure

Question 6

A patient’s blood pressure is measured as 120/80 mmHg. What does the 120 represent?

Accepted Answer

Systolic pressure

Question 7

Which heart valve is located between the right atrium and right ventricle?

Accepted Answer

Tricuspid valve

Question 8

If the left atrioventricular (mitral) valve fails to close properly, which of the following is most likely to occur?

Accepted Answer

Blood will flow back into the left atrium during ventricular systole

Question 9

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

Accepted Answer

Pulmonary vein

Question 10

During which phase of the cardiac cycle does the mitral (bicuspid) valve close?

Accepted Answer

Ventricular systole

Question 11

Which of the following equations correctly calculates pulse pressure?

Accepted Answer

$$PP = SBP - DBP$$

Question 12

A sphygmomanometer is used to measure which of the following?

Accepted Answer

Blood pressure

Question 13

Which sound is produced when the atrioventricular valves close?

Accepted Answer

First heart sound (S1)

Question 14

Which vessel is responsible for carrying blood from the left ventricle to the systemic circulation?

Accepted Answer

Aorta

Question 15

During exercise, which of the following changes typically occurs in blood pressure and pulse?

Accepted Answer

Pulse increases, blood pressure increases

Question 16

Which structure separates the right and left ventricles?

Accepted Answer

Interventricular septum

Question 17

Which of the following best describes ventricular ejection?

Accepted Answer

Blood is pumped from the ventricles into the arteries

Question 18

If a patient has a blockage in the right coronary artery, which area of the heart is most likely to be affected?

Accepted Answer

Right ventricle

Question 19

Which of the following is the correct order of blood flow through the heart?

Accepted Answer

Right atrium → Right ventricle → Pulmonary artery → Lungs → Left atrium → Left ventricle → Aorta

Question 20

Which formula correctly calculates cardiac output ($$CO$$)?

Accepted Answer

$$CO = HR 	imes SV$$

Anatomy and Physiology of the Heart: Structure, Blood Flow, and Cardiovascular Physiology

Study Guide - Practice Questions