Question 1

Which heart chamber receives oxygenated blood from the lungs?

Accepted Answer

Left atrium

Question 2

A patient has a leaky mitral (bicuspid) valve. What is the most likely consequence?

Accepted Answer

Backflow of blood into the left atrium

Question 3

Which vessel carries deoxygenated blood from the right ventricle to the lungs?

Accepted Answer

Pulmonary artery

Question 4

What is the correct sequence of blood flow through the heart starting from the body?

Accepted Answer

Body $$\rightarrow$$ Right atrium $$\rightarrow$$ Right ventricle $$\rightarrow$$ Lungs $$\rightarrow$$ Left atrium $$\rightarrow$$ Left ventricle $$\rightarrow$$ Body

Question 5

Which layer of the heart wall is responsible for contraction?

Accepted Answer

Myocardium

Question 6

A stenotic aortic valve will most likely result in which of the following?

Accepted Answer

Reduced blood flow from the left ventricle to the aorta

Question 7

Which heart valve prevents backflow of blood into the right atrium during ventricular contraction?

Accepted Answer

Tricuspid valve

Question 8

If the pulmonary valve fails to close properly, what is the most likely physiological effect?

Accepted Answer

Blood will leak back into the right ventricle from the pulmonary artery

Question 9

Which structure is the heart’s natural pacemaker?

Accepted Answer

SA node

Question 10

Which of the following best describes the function of the fibrous skeleton of the heart?

Accepted Answer

It provides electrical insulation between the atria and ventricles

Question 11

A patient with regurgitation of the tricuspid valve is at risk for which complication?

Accepted Answer

Enlargement of the right atrium

Question 12

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

Accepted Answer

Pulmonary vein

Question 13

Which heart chamber pumps oxygenated blood to the body?

Accepted Answer

Left ventricle

Question 14

Which of the following is the correct pathway for electrical conduction from the atria to the ventricles?

Accepted Answer

SA node $$\rightarrow AV $$node $$\rightarrow$$ Purkinje fibers

Question 15

Which layer of the heart wall lines the inside of the heart chambers?

Accepted Answer

Endocardium

Question 16

A patient with a narrowed (stenotic) mitral valve will most likely experience which of the following?

Accepted Answer

Reduced blood flow from the left atrium to the left ventricle

Question 17

Which of the following best explains why intact heart valves are essential for cardiac output?

Accepted Answer

They prevent backflow, ensuring the heart pumps a full volume of blood with each contraction

Question 18

Which fluid reduces friction between the heart and pericardium?

Accepted Answer

Pericardial fluid

Question 19

If the left ventricle fails to pump efficiently, which of the following is a likely consequence?

Accepted Answer

Systemic hypoxia due to reduced oxygen delivery to tissues

Question 20

Which of the following is the correct formula for cardiac output ($$CO$$)?

Accepted Answer

$$CO = HR 	imes SV$$

Anatomy & Physiology Study Notes: Heart Structure, Blood Flow, and Valves

Guida di studio - Domande di pratica

Study guide - Flashcard