16 Questions
What is the function of the heart in the cardiovascular system?
To distribute blood throughout the body and exchange materials to/from the tissues
Which type of blood vessels establish blood pressure needed for blood flow out to the tissues?
Arteries
What is the main function of capillaries in the circulatory system?
Facilitating exchange of materials to/from the tissues
In which circulatory channel does the heart pump blood to and return blood from the lungs?
Pulmonary Circulation
What is the role of veins in the cardiovascular system?
To return blood from the tissues via the systemic circulation
What forms a closed circuit in which blood pressure builds up based on the pumping of the heart?
Heart and Blood Vessels
What is the function of arteries in the circulatory system?
Move blood away from the heart, toward tissues
What happens during vasoconstriction in arterioles?
Smooth muscle relaxes, decreasing the diameter
Where does nearly all of the increased cardiac output flush into during strenuous exercise?
Skeletal muscles
What is the main function of capillaries in the circulatory system?
Exchange materials with the tissues
What is the primary characteristic of veins in the circulatory system?
Transport blood from the heart to the tissues back to the heart
What is the role of venules in the circulatory system?
Transport blood from the heart to the tissues back to the heart
What is the function of arterioles in regulating blood flow?
Decrease pressure and regulate blood flow to the tissues
What is the significance of vasodilation in arterioles?
Relaxation of smooth muscle increases the diameter
How does blood pressure fluctuate in arteries during systolic and diastolic events?
High pressure nearest heart when blood is pumped out
What triggers the vasomotor response in arterioles?
Contraction of smooth muscle in arterioles
Test your knowledge of blood vessels, blood pressure, arteries, arterioles, capillaries, veins, and the regulation of the cardiovascular system. This quiz covers the physiological aspects of blood flow and pressure in the body.
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