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MMS cardiovascular

Mead Middle cardiovascular and respiratory system

QuestionAnswer
cardiac muscles muscles in the heart that work to pump blood to the body
arteries blood vessels that carry blood AWAY from the heart
veins blood vessels that carry blood TOWARDS the heart
capillaries the tiniest blood vessels in the body with walls so thin gases (like oxygen and carbon dioxide) and other fluids (like nutrients and water) can pass right through
valves keep blood flowing 1 direction in the heart - there are 4 in your heart
atrium the 1st chamber blood enters in your heart from either your body or lungs (there are 2 atria in your heart, the right and left)
ventricle the 2nd chamber blood travels to in your heart (it comes from the atrium to the ventricles) There are 2 ventricles in your heart, the right and the left.
Blood vessels tubes that carry blood around your body
oxygen A gas that your body needs to turn nutrients in to energy. Your blood carries oxygen from your lungs to your entire body.
carbon dioxide A gas that is made when cells turn nutrients and oxygen into energy. Your blood carries carbon dioxide from all your body parts to your lungs to be exhaled.
respiratory system The organs that work together to bring oxygen in to your body and get rid of carbon dioxide.
lungs The organ where oxygen and carbon dioxide are exchanged. (Oxygen goes in to your blood and carbon dioxide leaves your blood and is exhaled)
diaphragm The muscle below your lungs that helps your lungs fill with air (inhale) and empty of air (exhale)
Created by: cvanwyk