Cardiovascular System and Acute Responses Review

Through which vessels does deoxygenated blood return to the right atrium?

• Pulmonary veins

• Aorta

• Superior and Inferior Vena Cava

• Coronary arteries

What happens to blood in the lungs during pulmonary circulation?

• It becomes deoxygenated

• It becomes oxygenated

• It remains unchanged

• It is filtered

What is the primary function of arteries in the cardiovascular system?

• Carry blood away from the heart

• Exchange oxygen and nutrients

• Carry blood back to the heart

• Store blood

Which blood vessels are responsible for the exchange of oxygen, nutrients, and wastes?

• Arteries

• Capillaries

• Veins

• Aorta

What is the largest artery in the body?

• Capillary

• Vein

• Aorta

• Pulmonary artery

What is the main role of veins in the cardiovascular system?

• Carry blood away from the heart

• Exchange gases

• Carry blood back to the heart

• Filter blood

What is the primary function of red blood cells (erythrocytes)?

• Protect the body from bacteria

• Carry oxygen to working muscles and other cells

• Prevent and stop bleeding

• Transport waste products

Which component of blood is responsible for protecting the body from bacteria, viruses, and toxins?

• Red blood cells

• Plasma

• White blood cells

• Platelets

What is the function of plasma in the blood?

• Carry oxygen

• Protect against bacteria

• Transport waste products and assist with their removal

• Form blood clots

What is the normal resting heart rate (HR) range for an adult?

• 40-60 bpm

• 60-100 bpm

• 100-140 bpm

• 140-180 bpm