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Questions and Answers
What is the primary function of capillaries in the circulatory system?
What is the primary function of capillaries in the circulatory system?
- Return deoxygenated blood to the heart
- Transport oxygen-rich blood from the heart
- Exchange substances between blood and body cells (correct)
- Regulate blood pressure to the arterial system
Which statement accurately describes the structural differences between arteries and veins?
Which statement accurately describes the structural differences between arteries and veins?
- Veins have thicker walls and smaller lumens than arteries
- Arteries have large lumens and contain valves to facilitate blood flow
- Veins are responsible for carrying blood away from the heart at high pressure
- Arteries have thick walls with small lumens compared to the large lumen of veins (correct)
Why do veins contain valves in their structure?
Why do veins contain valves in their structure?
- To increase blood pressure as it returns to the heart
- To facilitate the exchange of substances in blood
- To assist in the branching of blood flow to different body parts
- To prevent the backflow of blood during return to the heart (correct)
What is the characteristic of blood pressure in capillaries?
What is the characteristic of blood pressure in capillaries?
Which of the following correctly describes the relationship between arterioles and arteries?
Which of the following correctly describes the relationship between arterioles and arteries?
Flashcards
Artery Function
Artery Function
Arteries carry blood away from the heart at high pressure.
Vein Function
Vein Function
Veins return blood to the heart.
Capillary Function
Capillary Function
Capillaries are for exchanging substances between blood and body cells.
Artery Wall
Artery Wall
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Vein Wall vs. Artery Wall
Vein Wall vs. Artery Wall
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