Anatomy and Physiology of the Heart Quiz

What is the protective sac surrounding the heart called?

• Myocardium

• Epicardium

• Pericardium

• Endocardium

Which layer of the heart is composed of connective tissue and lines the inside of the heart?

• Epicardium

• Myocardium

• Endocardium

• Pericardium

What is the purpose of the atrioventricular (AV) valves?

• To regulate blood flow between the atria and ventricles

• To prevent backflow of blood into the ventricles during atrial contraction

• To regulate blood flow between the ventricles and great vessels

• To prevent backflow of blood into the atria during ventricular contraction

Which set of valves prevents the flow of blood back into the ventricles after contraction?

• Semilunar valves

• Pulmonary valve

• Aortic valve

• Atrioventricular (AV) valves

What are the primary pumping chambers of the heart called?

• Atria

• Ventricles

• Atrioventricular (AV) valves

• Semilunar valves

Which blood vessels are often referred to collectively as the great vessels?

• Pulmonary veins and aortic arch

• Superior and inferior vena cava

• Pulmonary artery and aorta

• Coronary arteries and veins

What is the function of the coronary arteries and veins?

• To provide blood supply to the heart muscle and electrical conduction system

• To prevent backflow of blood into the ventricles during atrial contraction

• To regulate blood flow between the atria and ventricles

• To prevent backflow of blood into the atria during ventricular contraction

Which chamber of the heart has a thicker myocardial layer?

• Right atrium

• Left atrium

• Left ventricle

• Right ventricle

Where is the apex of the heart located?

• At the top of the heart

• At the bottom of the heart

• To the left of the midline

• To the right of the midline

What is the name of the valve between the right atrium and ventricle?

• Pulmonic valve

• Mitral valve

• Tricuspid valve

• Aortic valve