Anatomy of the heart

The video tutorial covers the anatomy of the heart, including its surfaces, margins, and chambers. It explains the function of heart valves and the flow of blood through the heart, detailing the heart cycle phases of systole and diastole. The tutorial also discusses coronary circulation, highlighting the importance of coronary arteries and veins. The session concludes with a quiz to reinforce learning.

What is the most common cause of a heart attack?

• Malfunction of the tricuspid valve

• Narrowing of the coronary arteries

• Blockage in the pulmonary veins

• Enlargement of the left atrium

Which surface of the heart faces the diaphragm?

• Posterior surface

• Anterior surface

• Diaphragmatic surface

• Pulmonary surface

What is the function of the atrioventricular valves?

• Control the heart's electrical impulses

• Regulate blood flow between the lungs and heart

• Allow blood flow from the aorta to the ventricles

• Prevent backflow from the ventricles to the atria

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

• Tricuspid valve

• Pulmonary valve

• Mitral valve

• Aortic valve

During ventricular diastole, which valves are open?

• Aortic and pulmonary valves

• Pulmonary and tricuspid valves

• Mitral and aortic valves

• Tricuspid and mitral valves

What is the function of the pulmonary semilunar valve?

• Control the heart's electrical impulses

• Regulate blood flow between the atria

• Allow blood flow from the left ventricle to the aorta

• Prevent backflow into the right ventricle

What happens during systole?

• Ventricles contract and semilunar valves open

• Ventricles relax and atrioventricular valves open

• Atria contract and atrioventricular valves open

• Atria relax and semilunar valves close

Which structure receives deoxygenated blood from the body?

• Left ventricle

• Right atrium

• Right ventricle

• Left atrium

What is the role of the coronary arteries?

• Supply oxygenated blood to the heart muscle

• Transport deoxygenated blood to the lungs

• Connect the atria and ventricles

• Regulate the heart's electrical activity

Where does the coronary sinus deliver blood?

• Left atrium

• Right ventricle

• Right atrium

• Left ventricle