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Blood vessels and functions
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Lumen very narrow
Capillary
Oops!
Okay!
Valves at intervals throughout
Vein
Oops!
Okay!
Overall thickness of wall is small
Vein
Oops!
Okay!
Wall consist mostly of lining layer
Capillry
Oops!
Okay!
Muscle layer thick compared to veins
Artery
Oops!
Okay!
Carry out exchange only
Capillary
Oops!
Okay!
Elastic layer relatively thinner than artery
Arteriole
Oops!
Okay!
Muscle layer relatively thin
Vein
Oops!
Okay!
Carry out transport only
Artery, Vein and Arteriole
Oops!
Okay!
Muscle layer relatively thicker than in arteries
Arteriole
Oops!
Okay!
Narrow diameter
Capillary
Oops!
Okay!
Overall thickness of wall is great
Artery
Oops!
Okay!
No valves
Artery
Oops!
Okay!
Elastic layer thick compared to veins
Artery
Oops!
Okay!
Spaces between endothelial cell lining
Capillary
Oops!
Okay!
Elastic layer relatively thin
Vein
Oops!
Okay!
Numerous and highly branched
Capillary
Oops!
Okay!
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