b5 circulatory system

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what are the blood vessels?
the capilaries ,arteries and veins
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why do large animals need a circulatory system?
diffusion alone is too inefficient to provide material(oxygen and glucose) quickly to respiring cells.
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why do very small animal not have a circulatory system?
They rely on diffusion to supply oxygen and nutrients to all parts of the body.
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what is the job of the coronary artery?
it supplies the heart with glucose and oxygen
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what happens in an open circulatory system of an insect?
the insects blood fills up the blood cavity instead of being contained in blood vessels, the blood circulates slowly and therefore it cannot be used to deliver oxygen to the tissues instead there are special tubes which deliver air to respiring cells
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what does a single circulatory system have?
a heart with one atrium and one ventricle
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who was Galen?
he was a greek doctor that believed that blood flowed like a tide between the liver and the heart
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Card 2

Front

diffusion alone is too inefficient to provide material(oxygen and glucose) quickly to respiring cells.

Back

why do large animals need a circulatory system?

Card 3

Front

They rely on diffusion to supply oxygen and nutrients to all parts of the body.

Back

Preview of the back of card 3

Card 4

Front

it supplies the heart with glucose and oxygen

Back

Preview of the back of card 4

Card 5

Front

the insects blood fills up the blood cavity instead of being contained in blood vessels, the blood circulates slowly and therefore it cannot be used to deliver oxygen to the tissues instead there are special tubes which deliver air to respiring cells

Back

Preview of the back of card 5
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