The Heart and Circulation Quiz

What are the two main pathways through which the heart pumps blood?

What sound does a heart with a leaky valve make?

How many times does your heart beat each day?

What are the four chambers of the heart?

What is the function of the heart valves?

What is the role of the sinoatrial (SA) node in the heart?

How does the size of the left ventricle relate to its function?

What is the pathway of oxygen-poor blood through the heart?

What happens to blood in the lungs?

What is the significance of the left ventricle's muscular walls?