Circulatory System Flashcards

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1
Q

What do we call the muscular organ that is central to the functioning of our circulatory system?

A

Heart

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2
Q

Which out of veins and arteries have a thicker muscular layer

A

Arteries

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3
Q

What is wider in veins

A

Lumen

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4
Q

What do veins have that arteries don’t

A

Valves

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5
Q

What is there more of in arteries the in veins

A

Elastic tissue

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6
Q

What type of blood can be donatedby anyone and why

A

O- because it doesn’t have any antigens

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7
Q

What blood type can be received by anyone

A

AB+

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8
Q

Why is it important at O blood types don’t have any antigen

A

This means that the red blood cells aren’t recognised as foreign by the recipient’s immune system and so they are not rejected.

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