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Chapter 9

neutrophils white blood cell- first responders (most prominent)
lymphocytes white blood cell- offer better long term immunity to disease
monocytes white blood cell- stimulate fibroblasts, scar tissue
eosinophils white blood cell- responds to infection w/ multicellular parasites & also during allergic reactions
basophils white blood cell- respond to areas of injury and release histamine & heparin (increase inflammation)
right atrium upper right chamber, collects blood returning from the body tissues. Gets blood from the superior & inferior vena cava
right ventricle lower chamber right side, ejects deoxygenated blood to the lungs via the pulmonary trunk & arteries
left atrium upper chamber left side, receives oxygenated blood from the pulmonary veins of the lungs
left ventricle lower left chamber, pumps blood out to the tissues via aorta
right atrioventricular valve tricuspid valve separates right atrium & right ventricle (lub)
pulmonary valve pulmonary semilunar valve one way valve prevents backflow between right ventricle and pulmonary trunk (dub)
left atrioventricular valve bicuspid or mitral valve prevents backflow between left atrium & ventricle (lub)
aortic valve aortic semilunar valve one way valve prevents backflow between left ventricle & ascending aorta (dub)
systole when the heart chambers are contracting & ejecting blood. TOP number of BP
diastole when the heart chambers are relaxing & refilling. BOTTOM number of BP
stroke volume amount of blood ejected by the heart in one cardiac cycle
cardiac output measures the amount of blood ejected from the ventricles in one minute
Created by: michellerolfs



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