Echocardiograms Anatomy and Physiology

Question 1

Which chamber of the heart receives oxygen-poor blood from the body?

Accepted Answer

Right atrium

Answer

Left atrium

Answer

Left ventricle

Answer

Right ventricle

Question 2

What valve prevents backflow of blood from the left ventricle into the left atrium?

Accepted Answer

Mitral valve

Answer

Tricuspid valve

Answer

Pulmonary valve

Answer

Aortic valve

Question 3

Which structure initiates the electrical impulse that regulates the heartbeat?

Accepted Answer

Sinoatrial (SA) node

Answer

Atrioventricular (AV) node

Answer

Bundle of His

Answer

Purkinje fibers

Question 4

The pulmonary veins carry blood from the:

Accepted Answer

Lungs to the left atrium.

Answer

Right atrium to the right ventricle.

Answer

Left ventricle to the lungs.

Answer

Body to the right atrium.

Question 5

During which phase of the cardiac cycle does the heart muscle relax and the chambers fill with blood?

Accepted Answer

Diastole

Answer

Systole

Answer

Depolarization

Answer

Repolarization