Heart Chapter 15 Quiz 1

What does the term "cardiovascular" refer to?

• Heart and lungs

• Heart and blood vessels

• Lungs and blood vessels

• Heart and brain

What is the main function of the systemic circuit?

• To carry blood to the lungs

• To carry blood to the body cells

• To carry blood to the heart

• To carry blood to the liver

Where is the heart located in the body?

• In the abdominal cavity

• In the mediastinum of the thoracic cavity

• In the cranial cavity

• In the pelvic cavity

How many chambers does the heart have?

• 2

• 3

• 4

• 5

Which layer of the pericardium is also known as the epicardium?

• Fibrous pericardium

• Parietal pericardium

• Visceral pericardium

• Myocardium

What is the outer layer of the heart wall called?

• Myocardium

• Endocardium

• Epicardium

• Pericardium

What is the primary function of the epicardium?

• Contracts to pump blood from the heart chambers

• Forms a protective outer covering; secretes serous fluid

• Forms a protective inner lining of the chambers and valves

• Transports oxygen to the heart muscle

Which layer of the heart wall forms a protective inner lining of the chambers and valves?

• Epicardium

• Myocardium

• Endocardium

• Pericardium

Which chambers of the heart are thin-walled and receive blood returning to the heart?

• Ventricles

• Atria

• Auricles

• Valves

Where does the left atrium receive blood from?

• Right atrium

• Pulmonary veins

• Coronary sinus

• Superior vena cava