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Cardiology - Notes

NHTC 9 Cardiology - Notes

cardiology the study of the heart & heart diseases
cardiologist physician specializing in Dx & Tx of heart diseases
cardiovascular (CV) system aka circulatory system, comprised of the heart & blood vessels
primary function of CV delivers oxygen, nutrients and other essential substances to cells of the body; removes waste products of cellular metabolism
heart muscular organ that pumps blood throughout the body
4 chambers of heart RA (right atrium), RV (right ventricle), LA (left atrium), LV (left ventricle)
arteries carry oxygenated blood away from the heart to the body through the aorta
arteries branch into smaller vessels called arterioles
veins return deoxygenated blood from the capillaries to heart through IVC (inferior ven cava) & SVC (superior vena cava)
veins branch into smaller vessels called venules
aorta largest artery
capillaries contain venous & anterial blood
capillaries where the exchange of oxygen and carbon dioxide takes place
blood pressure force exerted by blood on the arterial walls
systole when the heart contracts and forces blood out of the heart
distole when the heart relaxes allowing blood to refill the heart
Created by: rmlgray