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Circulatory System
Words from our unit of study
12
Science
5th Grade
04/25/2011

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Term
artery
Definition
Blood vessels which carry oxygen-rich blood away from the heart.
Term
vein
Definition
Blood vessels which carry oxygen-poor blood back into the heart and lungs.
Term
atrium
Definition
upper chambers of the heart
Term
ventricle
Definition
lower, pumping chambers of the heart
Term
plasma
Definition
yellowish part of blood which is mostly water
Term
red blood cells
Definition
part of the blood that contains hemoglobin which contains iron
Term
white blood cells
Definition
part of the blood that fights infection
Term
platelets
Definition
cells which clot the blood
Term
circulatory system
Definition
responsible for transporting food, wastes, and oxygen throughout the body while helping to fight diseases
Term
capillary
Definition
blood vessel which connect the arteries and veins; place where exchange of gasses takes place
Term
valve
Definition
flap of tissue in the heart which prevents the blood from flowing backward
Term
valve
Definition
flap of tissue in the heart which prevents the blood from flowing backward
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