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Circulation
Circulatory System. Chapter 14.1
12
Biology
9th Grade
03/28/2009

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Term
Blood Pressure
Definition
The pressure exerted by the blood on the walls of blood vessels and heart chambers.
Term
Artery
Definition
A tube-like vessel that carries blood away from the heart.
Term
Capillary
Definition
A small blood vessel with two thin walls. Nutrients, oxygen and water can diffuse through walls.
Term
Vein
Definition
A series of capillaries that have bound together. Veins contain valves; like the heart.
Term
Ventricle
Definition
One of the two heart chambers that pumps blood to the rest of the body
Term
Atrium
Definition
One of the two heart chambers that functions in blood clotting.
Term
Platelet
Definition
A cell fragment found in blood that functions in blood clotting
Term
White Blood Cell
Definition
A blood cell that protects the body against infection.
Term
Plasma
Definition
The liquid part of blood.
Term
Hemoglobin
Definition
A protein found in red blood cells that binds to oxygen.
Term
Red Blood Cell
Definition
An oxygen transporting cell of the blood
Term
Circulatory System
Definition
The body system that moves blood throughout the body.
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