Anatomy and Physiology Cardiovascular System

Question 1

How many chambers does the human heart have?

Accepted Answer

Four

Answer

Two

Answer

Three

Answer

Five

Question 2

Which chamber of the heart pumps oxygenated blood to the systemic circulation?

Accepted Answer

Left ventricle

Answer

Right atrium

Answer

Right ventricle

Answer

Left atrium

Question 3

What is the function of the mitral (bicuspid) valve?

Accepted Answer

Prevents backflow from the left ventricle into the left atrium

Answer

Prevents backflow from the aorta into the left ventricle

Answer

Prevents backflow from the pulmonary artery into the right ventricle

Answer

Prevents backflow from the right ventricle into the right atrium

Question 4

Which blood vessels carry deoxygenated blood from the heart to the lungs?

Accepted Answer

Pulmonary arteries

Answer

Pulmonary veins

Answer

Coronary arteries

Answer

Superior vena cava

Question 5

The sinoatrial (SA) node, the heart's natural pacemaker, is located in which chamber?

Accepted Answer

Right atrium

Answer

Left ventricle

Answer

Right ventricle

Answer

Left atrium

Question 6

What is the pericardium?

Accepted Answer

The fibrous double-layered sac enclosing the heart

Answer

The inner lining of the heart chambers

Answer

The muscular layer of the heart wall

Answer

The valve between the right atrium and right ventricle

Question 7

The tricuspid valve is located between which two structures?

Accepted Answer

Right atrium and right ventricle

Answer

Left atrium and left ventricle

Answer

Right ventricle and pulmonary artery

Answer

Left ventricle and aorta