blood /blood vessels Flashcards

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1
Q

arteries have ______ walls to maintain pressure.

A

thick , elastic

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2
Q

arteries have a __________ lumen

A

narrow

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3
Q

veins have _________ walls

A

thinner

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4
Q

veins have _________ lumen.

A

wider

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5
Q

veins have _________ due to low pressure.

A

valves

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6
Q

Capillaries are the ______ blood vessel.

A

smallest

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7
Q

Capillaries have walls only _________.

A

one cell thick

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8
Q

Capillaries only let ________ at a time.

A

one red blood cell through

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