Circulatory System (Definition, Parts, Function)

The main function of the circulatory system is to send ____ and ____ throughout the body

one of the tissues in the body in the form of liquid; transports oxygen and nutrients

• hair

• blood vessels

• skin

• blood

blood is composed of ___% plasma

• 4%

• 55%

• 97%

• 41%

blood is composed of ___% red blood cells

• 55%

• 41%

• 4%

blood is composed of ___% white blood cells and platelets

• 81%

• 4%

• 10%

also called erythrocytes; carries oxygen; composed of hemoglobin; lasts for 120 days

• platelets

• red blood cells

• plasma

also called leukocytes; fights infection; lasts for a few days only; contains pus

• plasma

• white blood cells

• red blood cells

also called thrombocytes; smallest cells in the body; responsible for blood clotting

• platelets

• white blood cells

• plasma

yellow fluid substance; many proteins; acts as a river where RBCs, WBCs, and platelets float

• pus

• plasma

• blood

highway where blood flows; has three parts called the artery, vein, and capillary

• blood vessels

• blood chamber

• diaphragm

• vein