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Types of blood vessels…read more

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· thick walled
· blood under high pressure
· no valves
· carries blood away from heart
· small passageway for blood
· elastic - expands to carry blood
· carries oxygenated blood except for the PULMONARY
ARTERY…read more

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· thin walled
· blood under low pressure
· valves (to prevent backflow of blood)
· carries blood towards heart
· large passageway for blood
· non-elastic
· carries deoxygenated blood except for the PULMONARY
VEIN…read more

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· microscopic blood vessels linking arterioles and venules
· extremely thin walls (1 cell thick)
· allow food and oxygen to pass out to our body tissues
· allow carbon dioxide and other waste to pass into blood
from body tissues…read more

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