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13 Cards in this Set
- Front
- Back
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What do veins have that arteries don’t? |
Valves to prevent backflow |
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Why is there collagen in the blood vessel walls? |
To make them strong and durable |
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Which blood vessel (arteries or veins) have more collagen? |
Arteries have more collagen than veins |
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Why is there elastic tissue with the muscle of the blood vessel walls? |
To allow them to stretch and recoil |
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What is the endothelium |
The inner lining of the blood vessels |
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What cells make up the endothelium? |
Epithelial cells |
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Which blood vessel (vein or artery) has a wider lumen? |
Veins have a wider lumen than arteries |
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Which blood vessels (veins or arteries) have thicker walls? |
Arteries have thicker walls than veins |
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What is notable about the walls of capillaries? |
The walls of capillaries are one cell thick |
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What is different between the movement of blood in arteries versus veins? |
Arteries: Blood moves in pulses, affected by the heart Veins: No pulse, just a steady flow of blood |
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What assists blood flow in the veins? |
The contraction of skeletal muscles during the movement of limbs and breathing Also blood is drawn back to the heart through low pressure developed in the thorax |
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What feature of the artery allows it to withstand high pressure? |
The width and strength of its walls |
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How many coronary arteries and coronary veins are there? |
2 x coronary arteries 2 x coronary veins |
