Circulatory System Quiz

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Which type of vessel carries blood back to the heart?

Capillaries

Veins (correct)

Lymphatic vessels

Arteries

What is the main function of valves in large veins?

To transport oxygen

To regulate blood pressure

To prevent backflow of blood (correct)

To filter waste products

Which type of artery has many elastic lamellae alternating with smooth muscle?

Elastic arteries (correct)

Capillaries

Arterioles

Muscular arteries

What is the main role of venules in the circulatory system?

To drain capillary beds Signup and view all the answers

Which type of vessel has the thickest adventitia?

Veins Signup and view all the answers

What is the main function of arterioles in the circulatory system?

To regulate blood flow to capillaries Signup and view all the answers

Which type of vessel has only endothelium as its wall layer?

Capillaries Signup and view all the answers

What is the main function of lymphatic vessels?

To collect interstitial fluid and return it to blood Signup and view all the answers

Which type of vessel has pericytes and scattered smooth muscle cells?

Capillaries Signup and view all the answers

What is the main function of medium veins in the circulatory system?

To collect blood from venules Signup and view all the answers

Which layer of the heart is responsible for rhythmical contraction for pumping?

Myocardium Signup and view all the answers

What is the function of the epicardium?

To produce serous fluid that prevents friction as the heart beats Signup and view all the answers

Which layer of the heart is the thickest?

Myocardium Signup and view all the answers

Which layer of the heart contains modified cardiac muscle called Purkinje fibers?

Endocardium Signup and view all the answers

Which chambers of the heart are responsible for receiving blood?

Atria Signup and view all the answers

Which chambers of the heart are responsible for pumping blood out of the heart?

Ventricles Signup and view all the answers

Which blood vessels carry blood away from the heart?

Arteries Signup and view all the answers

Which blood vessels carry blood towards the heart?

Veins Signup and view all the answers

Which blood vessels have the thickest walls?

Arteries Signup and view all the answers

Which blood vessels have the thinnest walls?

Capillaries Signup and view all the answers

Which layer of the heart is responsible for surrounding, supporting, and anchoring the valves, as well as serving as an attachment site for cardiac muscle?

Parietal layer Signup and view all the answers

What is the function of the cardiac skeleton?

To separate the musculature of the atria from the ventricles Signup and view all the answers

What is the main function of heart valves?

To prevent backflow of blood Signup and view all the answers

What is the function of the endothelium in blood vessels?

To monitor molecule exchange and regulate blood flow Signup and view all the answers

What is the main function of large/elastic arteries?

To distribute blood to organs Signup and view all the answers

What is the main function of medium/muscular arteries?

To distribute blood to organs Signup and view all the answers

What is the main function of small arteries/arterioles?

To distribute blood to organs Signup and view all the answers

Where does the exchange between blood and interstitial fluid occur?

In capillaries Signup and view all the answers

What are the three types of capillaries?

Continuous, fenestrated, and sinusoid Signup and view all the answers

What is the main function of venules?

To carry blood away from capillaries Signup and view all the answers

Circulatory System Quiz

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Questions and Answers

Which type of vessel carries blood back to the heart?

What is the main function of valves in large veins?

Which type of artery has many elastic lamellae alternating with smooth muscle?

What is the main role of venules in the circulatory system?

Which type of vessel has the thickest adventitia?

What is the main function of arterioles in the circulatory system?

Which type of vessel has only endothelium as its wall layer?

What is the main function of lymphatic vessels?

Which type of vessel has pericytes and scattered smooth muscle cells?

What is the main function of medium veins in the circulatory system?

Which layer of the heart is responsible for rhythmical contraction for pumping?

What is the function of the epicardium?

Which layer of the heart is the thickest?

Which layer of the heart contains modified cardiac muscle called Purkinje fibers?

Which chambers of the heart are responsible for receiving blood?

Which chambers of the heart are responsible for pumping blood out of the heart?

Which blood vessels carry blood away from the heart?

Which blood vessels carry blood towards the heart?

Which blood vessels have the thickest walls?

Which blood vessels have the thinnest walls?

Which layer of the heart is responsible for surrounding, supporting, and anchoring the valves, as well as serving as an attachment site for cardiac muscle?

What is the function of the cardiac skeleton?

What is the main function of heart valves?

What is the function of the endothelium in blood vessels?

What is the main function of large/elastic arteries?

What is the main function of medium/muscular arteries?

What is the main function of small arteries/arterioles?

Where does the exchange between blood and interstitial fluid occur?

What are the three types of capillaries?

What is the main function of venules?

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