The Vascular System and Blood Flow Quiz
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Which type of blood vessels have very thick muscular walls and carry blood away from the heart?
A. Arterioles
B. Capillaries
C. Arteries
D. Venules
What is the main role of arteries in the cardiovascular system?
A. Returning blood to the heart
B. Exchanging gases and nutrients with the tissues
C. Regulating blood distribution to the various tissues
D. Carrying oxygenated blood away from the heart
What is the main role of venules in the cardiovascular system?
A. Carrying deoxygenated blood to the lungs
B. Regulating blood distribution to the various tissues
C. Exchanging gases and nutrients with the tissues
D. Returning blood to the heart for another trip throughout the vascular system
Which type of blood vessels have the ability to stretch and recoil, assisting in the movement of blood during diastole?
A. Arterioles
B. Arteries
C. Capillaries
D. Venules
What is the function of the one-way valves in veins?
A. Ensuring the flow of blood can only go back to the heart
B. Creating a difference in pressure between the veins in the chest and abdominal cavities
C. Assisting in the distribution of blood to different organs
D. Regulating blood clotting
What is the main function of veins in the cardiovascular system?
A. Regulating blood distribution to the various tissues
B. Carrying oxygenated blood away from the heart
C. Exchanging gases and nutrients with the tissues
D. Returning blood to the heart for another trip throughout the vascular system
What is the main role of the nervous system in the return of blood to the heart?
A. Assisting in the distribution of blood to different organs
B. Pushing or massaging blood back to the heart with each muscle contraction
C. Causing veins to slightly constrict to return more blood to the heart
D. Creating a difference in pressure between the veins in the chest and abdominal cavities
Which component makes up about 55 percent of blood and is composed mostly of water?
A. Plasma
B. Red blood cells
C. Platelets
D. White blood cells
What is the main function of capillaries in the cardiovascular system?
A. Carrying deoxygenated blood to the lungs
B. Regulating blood distribution to the various tissues
C. Exchanging gases and nutrients with the tissues
D. Transporting blood away from the heart
What is the function of the skeletal muscle pump in the return of blood to the heart?
A. Increasing the delivery of blood to the working muscle
B. Regulating blood clotting
C. Pushing or massaging blood back to the heart with each muscle contraction
D. Assisting in the distribution of blood to different organs
What is the role of the thoracic pump in the return of blood to the heart?
A. Creating a difference in pressure between the veins in the chest and abdominal cavities
B. Pushing or massaging blood back to the heart with each muscle contraction
C. Regulating blood clotting
D. Assisting in the distribution of blood to different organs
What is the function of platelets in the blood?
A. Acting as a transport medium for nutrients, proteins, ions, and gases
B. Transporting O2 and CO2 in the blood
C. Protecting the body from disease
D. Regulating blood clotting
What is the main role of plasma in the blood?
A. Transporting O2 and CO2 in the blood
B. Acting as a transport medium for nutrients, proteins, ions, and gases
C. Regulating blood clotting
D. Protecting the body from disease
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