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health- c&r
Term | Definition |
---|---|
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 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 |
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 blood 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 |