Cardiovascular System

What does the cardiovascular system do?

• delivers oxygen and nutrients to the body tissues and carries away wastes such as carbon dioxide via blood.

• is responsible for producing hormones that regulate metabolism.

• is involved in the digestion of food and absorption of nutrients.

• controls the body's response to external stimuli and environmental changes.

The function of the cardiovascular system is to deliver ______ and nutrients and to remove carbon dioxide and other waste products.

• oxygen

• hydrogen

• nitrogen

• helium

Which structure is responsible for carrying deoxygenated blood to the heart?

• Vena Cava

• Aortic Vein

• Pulmonary artery

• Coronary sinus

What is the function of the aorta?

What is the sac called that encloses the heart?

• Pericardium

• Myocardium

• Endocardium

• Epicardium

Which part of the pericardium is described as 'loosely fitting superficial part of the sac'?

• Fibrous pericardium

• Serous pericardium

• Epicardium

• Myocardium

What is the outermost layer of the heart wall?

Which layer of the heart wall is mostly composed of muscle?

• Endocardium

• Myocardium

• Epicardium

• Pericardium

The innermost layer of the heart wall is the _______.

• Endocardium

• Myocardium

• Epicardium

• Pericardium

Which vein is responsible for bringing deoxygenated blood from the upper body to the heart?

• Superior vena cava

• Inferior vena cava

• Pulmonary vein

• Jugular vein