Cardiovascular System

What is the thick, muscular middle layer of the heart called?

• Myocardium

• Endocardium

• Pericardium

• Epicardium

What is the outer layer of the heart called?

• Epicardium

• Myocardium

• Endocardium

• Pericardium

How many valves act as restraining gates to control the direction of blood flow in the heart?

• Four

• Two

• Six

• Eight

Properly functioning heart valves allow blood to flow ONLY in which direction?

• Forward direction

• Backward direction

• In all directions

• In a circular motion

Which of the following is NOT one of the four heart valves?

• Tricuspid Valve

• Pulmonary Valve

• Mitral Valve

• Carotid Valve

List the four heart valves.

• Tricuspid Valve, Pulmonary Valve, Mitral Valve, Aortic Valve

• Tricuspid Valve, Pulmonary Valve, Bicuspid Valve, Carotid Valve

• Mitral Valve, Aortic Valve, Jugular Valve, Pulmonary Valve

• Aortic Valve, Pulmonary Valve, Femoral Valve, Tricuspid Valve

The heart is divided into how many chambers or cavities?

The heart chambers are divided into which two sides?

• Right and Left sides

• Upper and Lower sides

• Anterior and Posterior sides

• Superior and Inferior sides