Human Cardiovascular System Quiz

What is the main role of red blood cells?

• To deliver oxygen and carbon dioxide

• To stop bleeding

• To fight infections

• To transport hormones

Which type of blood cell is responsible for immune defense?

• Red blood cells

• Platelets

• White blood cells

• Plasma cells

What is the normal resting blood pressure for an adult?

• 130/90 Hgmm

• 140/100 Hgmm

• 120/80 Hgmm

• 110/70 Hgmm

What is thrombosis?

• Inflammation of blood vessels

• Formation of blood clots

• High blood pressure

• Low red blood cell count

What can a heart attack result from?

• High oxygen levels

• Low cholesterol levels

• Obstruction of a coronary artery

• Excessive exercise

What is anemia?

• High blood pressure

• Low ability of blood to carry oxygen

• Increased heart rate

• Excessive blood clotting

What is the function of heart valves?

• To increase heart rate

• To prevent backflow of blood

• To produce blood cells

• To pump blood

Which type of blood cells miss the nucleus?

• Red blood cells

• White blood cells

• Platelets