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circulatory system
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the group of organs and tissues that act as transfer stations carrying needed materials to cells and removing their waste products.
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circulatory system
the group of organs and tissues that act as transfer stations carrying needed materials to cells and removing their waste products.
arteries
blood vessels that carry blood away from the heart to various parts of the body.
veins
blood vessels that carry blood from all parts of the body back to the heart.
capillaries
tiny blood vessels that carry blood to and from almost all body cells and connect arteries and veins.
pulmonary circulation
when blood travels from the heart, through the lungs, and back to the heart.
systemic circulation
takes place when oxygen rich blood travels to all body tissues except the lungs.
blood pressure
the force of blood pushing against the walls of the blood vessels.
systolic pressure
the pressure when the heart contracts and pumps blood into the arteries
diastolic pressure
the pressure when the heart relaxes to refill with blood
pulse
the contractions of the heart as it pumps blood throughout the body
plasma
liquid part of your blood that contains red blood cells, white blood cells, and platelets
white blood cells
fight infection in the body and makes antibodies
red blood cells
contains hemoglobin and carries oxygen from the lungs to all parts of the body
platelets
helps blood clot
respiratory system
the organs that supply your blood with oxygen
trachea
a passageway in your throat that takes air into and out of your lungs
epiglottis
a flap of tissue in the back of your mouth that keeps food out of your trachea
bronchi
two passageways that branch from the trachea, one to each lung
lungs
two large organs that exchange oxygen and carbon dioxide
diaphragm
a large, dome shaped muscle below the lungs that expands and compresses the lungs and enables breathing

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