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First Class Kitsap County Life in the Blood

Circulatory System

The system that carries blood throughout your system


Vessels that carry blood AWAY from your heart


Vessels that RETURN blood to your heart


Vessels that branch out from the arteries becoming "little arteries"


"Little veins" that come together to form larger veins


The smallest blood vessels with very thin walls. They join the smallest arterioles to the smallest venules and enable the exchange of water, oxygen, carbon dioxide between blood and surrounding tissues.


Another name for red blood cells.


Another name for white blood cells


Special white blood cells that eat dangerous or worn out cells.


The liquid part of your blood, made up of 90% water

Red blood cells

These turn your blood red and make up 40% of the solids in a drop of blood. They are your body's main way of delivering oxygen to your body cells.


Fragments of cells that are carried in your blood. They aid in the blood clotting process


chemical messengers that travel the body via the bloodstream in order to control and coordinate complex processes, such as growth and metabolism

White blood cells

Lymphatic and immune system cells that travel throughout your body, attempting to destroy harmful bacteria and viruses

Blood clotting process

The sealing of cuts. This process keeps your blood from leaking out and helps to prevent the invasion of harmful bacteria


Special markers that are attached to your cells. The ones attached to your red blood cells determine the type of blood you have


A condition that results from not having enough red blood cells

Stem cells

Cells that have the ability to become any kind of cell they need to be

Oxygenated blood

Blood that is carrying oxygen to the cells

Deoxygenated blood

Blood that has given up some of its oxygen and picked up carbon dioxide

Blood transfusion

the transferring of blood from one person to another

Universal donor blood

The blood type that has neither A nor B antigens and can be given to nearly any person

Universal recipients

People who can receive all blood types because they have both A and B antigens on their red blood cells

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