8.1 THE HEART

What is the main function of the cardiovascular system?

• To carry oxygenated blood to the body
• To carry deoxygenated blood to the body
• To push blood through the vessels
• To carry nutrients to the lungs

Which of the following is not a part of the cardiovascular system?

• Heart
• Blood vessels
• Blood
• Lungs

What is the function of the right side of the heart?

• To pump oxygenated blood to the lungs
• To pump deoxygenated blood to the body
• To pump deoxygenated blood to the lungs
• To pump oxygenated blood to the body

What is the outer layer of the heart that lies against the pericardium called?

• Myocardium
• Endocardium
• Epicardium
• Pericardium

How many chambers does the heart have?

• 1.0
• 2.0
• 3.0
• 4.0

What separates the atria from the ventricles?

• Semilunar valves
• Atrioventricular valves
• Myocardium
• Endocardium

Which valve is found on the right side of the heart and prevents blood from flowing back from the pulmonary arteries into the right ventricle?

• Aortic semilunar valve
• Bicuspid valve
• Tricuspid valve
• Pulmonary semilunar valve

Where does blood go after passing through the tricuspid valve?

• Left atrium
• Right ventricle
• Left ventricle
• Right atrium

Which vein returns blood to the heart from the lower body?

• Pulmonary vein
• Superior vena cava
• Inferior vena cava
• Aorta

What do arteries do in the systemic circulation?

• Carry oxygenated blood from the heart toward body tissues
• Carry deoxygenated blood back to the heart
• Carry deoxygenated blood from the heart to the lungs
• Carry oxygenated blood back to the heart