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Questions and Answers
Which layer of tissue borders the intima and the media in arteries?
Which layer of tissue borders the intima and the media in arteries?
- Internal elastic membrane (correct)
- Smooth muscle cells
- External elastic membrane
- Endothelial lining
What does the intact endothelium in the intima synthesize to regulate thrombosis?
What does the intact endothelium in the intima synthesize to regulate thrombosis?
- Endothelin and angiotensin-converting enzyme
- Prostacyclin and plasminogen activator (correct)
- Histocompatibility antigens and adhesion molecules
- Von Willebrand factor and prostacyclin
What is the primary function of the intimal endothelium in regulating blood flow and vascular reactivity?
What is the primary function of the intimal endothelium in regulating blood flow and vascular reactivity?
- Promoting smooth muscle cell proliferation
- Synthesizing vasoconstrictors and vasodilators (correct)
- Modulating immune and inflammatory reactions
- Producing prothrombotic molecules
What is increasingly implicated in plaque rupture and plaque erosion in complex atheromas?
What is increasingly implicated in plaque rupture and plaque erosion in complex atheromas?
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What is the outer layer of the artery called?
What is the outer layer of the artery called?
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What do the smooth muscle cells in the media of arteries do?
What do the smooth muscle cells in the media of arteries do?
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Where does resistance to blood flow primarily occur?
Where does resistance to blood flow primarily occur?
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What is the function of the vasa vasorum?
What is the function of the vasa vasorum?
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Where are the pulsations in the radial artery located?
Where are the pulsations in the radial artery located?
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What is the size range of small arterioles?
What is the size range of small arterioles?
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