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Questions and Answers
What is true about the walls of veins compared to arteries?
What is true about the walls of veins compared to arteries?
Which layer is very thin in the walls of veins?
Which layer is very thin in the walls of veins?
What is absent or very thin in the walls of veins?
What is absent or very thin in the walls of veins?
How do the walls of veins in the lower parts of the body compare to those in the upper parts?
How do the walls of veins in the lower parts of the body compare to those in the upper parts?
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What is true about the tunica media and tunica adventitia in the walls of veins?
What is true about the tunica media and tunica adventitia in the walls of veins?
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Study Notes
Vein Structure
- Vein walls are thinner than artery walls, but have a larger diameter.
- The layering in vein walls is not very distinct.
Tunica Intima
- The tunica intima is very thin in veins.
- Only the largest veins have an appreciable amount of subendothelial connective tissue.
Elastic Laminae
- Internal and external elastic laminae are absent or very thin in veins.
Tunica Media and Tunica Adventitia
- The tunica media appears thinner than the tunica adventitia in veins.
- The tunica media and tunica adventitia tend to blend into each other in veins.
Vein Wall Thickness
- The walls of veins in the lower parts of the body are typically thicker than those of the upper parts of the body.
- Vein wall thickness varies depending on location.
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Description
This quiz is about the structural differences between veins and arteries, including the layers of the vein wall and the characteristics of each layer.
