Test Review

Which of the following is not a main function of the cardiovascular system?

• A) Digestion

• B) Regulation

• C) Protection

• D) Distribution

What percentage of blood is made up of plasma?

• 65%

• 25%

• 45%

• 55%

Which type of blood cell is responsible for transporting oxygen?

• Leukocytes

• Platelets

• Monocytes

• Erythrocytes

Which valve prevents backflow into the right atrium?

• Aortic valve

• Pulmonary valve

• Mitral valve

• Tricuspid valve

What is the dominant Rh factor in the population?

• Rh−

• O−

• Rh+

• AB+

Which of the following correctly lists the path of blood flow beginning with the body cells?

• Body ➞ Vena cava ➞ Right atrium ➞ Right ventricle ➞ Lungs

• Body ➞ Aorta ➞ Lungs ➞ Right atrium

• Body ➞ Pulmonary arteries ➞ Lungs ➞ Heart

• Body ➞ Left atrium ➞ Pulmonary veins ➞ Lungs

Which type of blood vessel has the thickest walls to withstand high pressure?

• Veins

• Venules

• Capillaries

• Arteries

Which component of blood contains clotting factors such as fibrin?

• Plasma

• Platelets

• White blood cells

What is the primary function of the chordae tendineae?

• A) Anchor valves to the ventricle walls

• B) Regulate heart rate

• C) Produce hemoglobin

• D) Initiate heartbeat

Which term describes the relaxation of the ventricles and contraction of the atria?

• Vasoconstriction

• Coagulation

• Diastole

• Systole