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Cardiovascular
Chapter 9
Term | Definition |
---|---|
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