Cardiovascular System Quiz

What is the primary function of the cardiovascular system?

• To transmit nerve signals

• To supply oxygen and nutrients to tissues and remove wastes

• To digest food

• To support the skeletal structure

Which part of the cardiovascular system carries oxygen-poor blood to the lungs?

• The systemic circuit

• The pulmonary circuit

• The capillaries

• The veins

What does the systemic circuit do in the cardiovascular system?

• It sends oxygen-rich blood to all body cells and picks up carbon dioxide

• It carries blood to the heart only

• It filters blood through the kidneys

• It absorbs nutrients from digested food

What is the function of the alveoli in the human respiratory system as depicted in the diagram?

• To pump blood throughout the body

• To transport oxygen to the brain

• To facilitate the exchange of oxygen and carbon dioxide

• To filter blood

Which part of the heart receives oxygen-poor blood from the body and pumps it to the lungs for oxygenation?

• Left ventricle

• Right atrium

• Left atrium

• Right ventricle

What does the color blue in the diagram typically represent?

• Oxygen-rich blood

• Oxygen-poor blood

• Blood flow direction

• Diffusion process

Which valve is located between the left atrium and the left ventricle?

• Pulmonary valve

• Aortic valve

• Tricuspid valve

• Mitral (bicuspid) valve

What is the shape of the heart as described in the text?

• Spherical

• Cone-shaped

• Rectangular

• Cylindrical

Where is the heart located?

• In the abdominal cavity

• In the thoracic cavity

• In the cranial cavity

• In the pelvic cavity

How long is the average adult heart?

• 10 cm

• 14 cm

• 18 cm

• 20 cm