12 Questions
What is the role of the tunica intima in blood vessels?
Serving as the inner layer made of epithelial tissue
Why do arteries have a thicker media layer compared to veins?
To maintain high blood pressure due to being under high pressure
Which artery type has elastic fibers in all three tunics and allows for expansion and recoil?
Elastic Arteries
What is the function of arterioles in the circulatory system?
Distribute blood to organs and tissues
What does systolic pressure represent in terms of heart function?
Maximum pressure during left ventricle contraction
How is diastolic pressure defined and what is its significance?
Minimum pressure during left ventricle relaxation, reflecting constant vessel health
What is the main function of arteries in the cardiovascular system?
Carry O2-rich blood from the heart to the organs
Which blood vessels are responsible for carrying CO2-rich blood back to the heart in the cardiovascular system?
Veins
What is the function of capillaries in the circulatory system?
Exchange substances between blood and interstitial fluid
Which of the following correctly describes veins in the cardiovascular system?
Carry O2-rich blood from the organs back to the heart under low pressure
What is NOT a function of arteries in the cardiovascular system?
Exchange substances between blood and interstitial fluid
Why are capillaries crucial in the circulatory system?
To facilitate exchange between blood and interstitial fluid
Test your knowledge on the overall function of blood vessels and the three types of blood vessels - arteries, veins, and capillaries. Learn about how arteries carry blood away from the heart under high pressure, while veins bring blood back to the heart, and capillaries facilitate nutrient exchange at a cellular level.
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