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to allow gas exchange (oxygen and carbon dioxide)

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14y ago

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What does the thinnest of the capillary walls allow?

only metabolic wastes out of the capillary


Strength of arterial and capillary walls?

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What are the common problems about capillary?

they have skinny walls


How may layers do Capillary walls have?

500


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Which part of the respiratory system will have the least amount of cartilage and the thinnest walls?

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Why does capillary have thin walls?

The capillary walls are the thinnest blood vessels to allow the exchange of materials.Capillary walls only have a single layer of endothelial cells (the flattened layer of cells that line the closed spaces in the body). This is unlike the arteries and veins which have multiple layers such as smooth muscle, elastin, and connective tissues. The thin walls allow for oxygen and waste products (such as carbon dioxide) to diffuse between the tissues and blood.


What is permeability an important characteristic of?

Capillary walls & Cell membranes