B3 2.2: Keeping the blood flowing.

All information was taken directly from the AQA revision guide with only the key points from B3 2.2.

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  • Created by: JSpencer
  • Created on: 03-03-16 21:42
What are the blood vessels that blood flows around the body in?
The arteries, veins and the capillaries.
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What do arteries have/do?
Carry blood AWAY from the heart, have thick walls containing muscles and elastic tissue.
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What do veins have/do?
Thinner walls than arteries and have valves along them to stop the backflow of blood.
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What do capillaries have/do?
They are narrow thin walled vessels and carry blood through organs to allow the exchange of substances with all living things in the body.
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What do the blood vessels do?
The heart uses them to keep the blood flowing.
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Why will blood not flow effectivly through blood vessels?
Blocked or too narrow = blood won't flow efficently.
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What can stents do?
Be inserted to keep blood vessels open.
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Why are stents particularly useful?
When coronary arties become narrowed due to fatty deposits, cutting off blood supply to the heart.
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What could leaky valves mean?
Blood could flow in the wrong direction.
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What kind of valves can be inserted in the heart to replace damaged valves?
Artifical or animal valves.
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Other cards in this set

Card 2

Front

What do arteries have/do?

Back

Carry blood AWAY from the heart, have thick walls containing muscles and elastic tissue.

Card 3

Front

What do veins have/do?

Back

Preview of the front of card 3

Card 4

Front

What do capillaries have/do?

Back

Preview of the front of card 4

Card 5

Front

What do the blood vessels do?

Back

Preview of the front of card 5
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