Question 1

Which heart chamber receives deoxygenated blood from the body via the superior vena cava?

Accepted Answer

Right atrium

Question 2

A blockage in the anterior interventricular artery would most directly affect which region of the heart?

Accepted Answer

Left ventricle

Question 3

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

Accepted Answer

Tricuspid valve

Question 4

During ventricular contraction, which structure prevents the atrioventricular valves from inverting?

Accepted Answer

Chordae tendineae

Question 5

If the papillary muscles fail to contract during systole, what is the most likely consequence?

Accepted Answer

Blood will flow backward into the atria

Question 6

Which vessel carries oxygenated blood from the heart to the systemic circulation?

Accepted Answer

Aorta

Question 7

A patient has a defect in the mitral (bicuspid) valve. Which circulation is most directly affected?

Accepted Answer

Systemic circulation

Question 8

Which artery supplies blood to the right side of the heart?

Accepted Answer

Right coronary artery

Question 9

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

Accepted Answer

Prevents backflow from the pulmonary trunk into the right ventricle

Question 10

If the aorta is constricted, which equation best represents the effect on blood pressure ($$BP) $$given cardiac output ($$CO) $$and total peripheral resistance ($$TPR$$)?

Accepted Answer

$$BP = CO 	imes TPR$$

Question 11

Which vessel is the first branch off the aortic arch supplying blood to the right arm and head?

Accepted Answer

Brachiocephalic artery

Question 12

A patient with a blockage in the circumflex artery is most likely to experience ischemia in which part of the heart?

Accepted Answer

Left atrium and lateral wall of left ventricle

Question 13

Which structure anchors the atrioventricular valves to the papillary muscles?

Accepted Answer

Chordae tendineae

Question 14

Which heart chamber pumps blood into the pulmonary trunk?

Accepted Answer

Right ventricle

Question 15

If the tricuspid valve is damaged, which of the following is most likely to occur?

Accepted Answer

Regurgitation of blood into the right atrium during ventricular contraction

Question 16

Which vessel returns deoxygenated blood from the upper body to the heart?

Accepted Answer

Superior vena cava

Question 17

Which of the following arteries supplies the anterior wall of both ventricles?

Accepted Answer

Anterior interventricular artery

Question 18

A patient with mitral valve stenosis will have difficulty with blood flow between which two chambers?

Accepted Answer

Left atrium and left ventricle

Question 19

Which of the following best describes the path of blood flow from the right atrium to the lungs?

Accepted Answer

Right atrium → tricuspid valve → right ventricle → pulmonary semilunar valve → pulmonary trunk

Question 20

Which equation best represents the relationship between cardiac output ($$CO$$), stroke volume ($$SV$$), and heart rate ($$HR$$)?

Accepted Answer

$$CO = SV 	imes HR$$

Anatomy of the Heart and Major Arteries

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