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Science 7/8 system
circulatory system
6
Science
7th Grade
05/21/2015
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Term
Atrium
 Definition
receives blood that comes to the heart
Term
Venticle
 Definition
pumps blood out of the heart, in the lower chamber
Term
Pacemaker
 Definition
a group of cells in the right atrium, sends out signals that make the heart muscle contract
Term
Arteries
 Definition
carries blood away from the heart
Term
Capillaries
 Definition
substances are exchanged between blood and body cells.
Term
Veins
 Definition
carry blood to the heart
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