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5 Cards in this Set
- Front
- Back
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what are capillaries
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Microscopic vessels that form a network among the tissue cells, such that no substance has to diffuse far to enter or leave a cell.
Convey blood between arteries and veins |
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open circulatory system
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Blood is pumped through open-ended vessels and flows out among the cells.
No distiction between blood and interstitial fluid. Examples: Insects |
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Closed Circulatory System (Cardiovascular System)
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consists of a heart and a network of tubelike vessels.
Blood confined to vessels. Does not mix with interstitial fluid. |
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Arteries
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carry blood away from the herat to organs throughout the body.
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Veins
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return blood to the heart
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