A&P Chapter 12 - The Cardiovascular System: Heart

What is the function of the pulmonary circuit in the cardiovascular system?

• It transports blood to and from the kidneys.

• It carries blood to and from the lungs.

• It circulates blood within the heart itself.

• It delivers blood to the brain and back.

What do arteries do in the cardiovascular system?

• They return blood to the heart.

• They carry blood away from the heart.

• They connect the smallest arteries and veins.

• They transport blood to and from the lungs.

What is the role of capillaries in the cardiovascular system?

• They return blood to the heart.

• They carry blood away from the heart.

• They are tiny vessels between the smallest arteries and smallest veins.

• They transport blood to and from the lungs.

Which vessels are responsible for returning blood to the heart?

• Arteries

• Capillaries

• Veins

• Pulmonary vessels

What is the heart surrounded by?

• Pleural cavity

• Pericardial cavity

• Abdominal cavity

• Cranial cavity

What is the visceral pericardium also known as?

• Myocardium

• Endocardium

• Epicardium

• Pericardium

What does the parietal pericardium line?

• The heart's outer surface

• The inner surface of the pericardial sac

• The inner surface of the heart chambers

• The outer surface of the pericardial sac

What is the bulk of the heart composed of?

• Endocardium

• Myocardium

• Pericardium

• Intercalated discs

What lines the inner surfaces of the heart?

• Myocardium

• Pericardium

• Intercalated discs

• Endocardium

What are cardiac muscle cells interconnected by?

• Myocardium

• Endocardium

• Intercalated discs

• Pericardium