CET Cardiovascular Anatomy & Physiology

Question 1

What is the function of the atria in the heart?

Accepted Answer

They receive blood returning to the heart

Answer

They pump blood to the lungs.

Answer

They pump blood to the rest of the body.

Answer

They regulate blood pressure.

Question 2

What separates the left and right sides of the heart?

Accepted Answer

The septum

Answer

Valves

Answer

The pericardium

Answer

The sinoatrial node

Question 3

Which valve prevents backflow of blood into the left atrium?

Accepted Answer

Mitral valve

Answer

Aortic valve

Answer

Tricuspid valve

Answer

Pulmonary valve

Question 4

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

Accepted Answer

Initiates electrical impulses in the heart

Answer

Contracts the ventricles.

Answer

Prevents backflow of blood.

Answer

Stimulates blood clotting.

Question 5

Which blood vessel carries oxygenated blood from the lungs to the heart?

Accepted Answer

Pulmonary vein

Answer

Pulmonary artery

Answer

Aorta

Answer

Superior vena cava

Question 6

What structure encloses and protects the heart?

Accepted Answer

Pericardium

Answer

Myocardium

Answer

Endocardium

Answer

Epicardium

Question 7

Where does the aorta carry blood?

Accepted Answer

To the entire body

Answer

To the lungs

Answer

To the brain only

Answer

To the right atrium

Question 8

Which heart chamber has the thickest walls?

Accepted Answer

Left ventricle

Answer

Right atrium

Answer

Right ventricle

Answer

Left atrium

Question 9

What does the term 'cardiac output' refer to?

Accepted Answer

The volume of blood pumped by the heart per minute

Answer

The number of heartbeats per minute

Answer

The amount of oxygen in the blood

Answer

The pressure in the arteries