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Questions and Answers
What is the primary function of arteries in the circulatory system?
What is the primary function of arteries in the circulatory system?
- To return deoxygenated blood to the heart
- To regulate blood pressure
- To transport nutrients to tissues
- To carry blood away from the heart (correct)
Which type of blood vessels primarily carries deoxygenated blood?
Which type of blood vessels primarily carries deoxygenated blood?
- Arterioles
- Capillaries
- Veins (correct)
- Pulmonary arteries
What is a distinctive feature of the walls of arteries?
What is a distinctive feature of the walls of arteries?
- Thin and flexible walls
- Thick and elastic walls (correct)
- Muscle walls that can constrict
- Walls that are permeable for gas exchange
Which blood vessel branches into smaller arteries known as arterioles?
Which blood vessel branches into smaller arteries known as arterioles?
Which statement is true regarding pulmonary veins?
Which statement is true regarding pulmonary veins?
Flashcards
Arteries
Arteries
Blood vessels that carry blood away from the heart.
Veins
Veins
Blood vessels that carry blood back to the heart.
Oxygenated blood in arteries
Oxygenated blood in arteries
Arteries carry oxygenated blood, except for the pulmonary arteries.
Deoxygenated blood in veins
Deoxygenated blood in veins
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Artery wall structure
Artery wall structure
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Study Notes
Blood Vessels
- Blood travels through three types of vessels: arteries, arterioles, and veins.
- Arteries carry oxygenated blood away from the heart.
- Arteries have thick, strong, elastic walls.
- Arteries branch into smaller vessels called arterioles.
- Veins carry deoxygenated blood back to the heart, except for the pulmonary vein, which carries oxygenated blood.
- Veins have thinner walls than arteries.
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