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Med Term Ch 5

Dooley's Med Term Ch 5

card/o heart
cardi/o heart
ven/o vein
arteri/o artery
capill/o capiilary
hem/o blood
hemat/o blood
atrium one of the upper chambers of the heart
ventricle one of the lower chambers of the heart
phleb/o vein
vascul/o blood vessels (arteries & veins)
pericardium fibrous membrane that covers the heart; consists of 2 layers
pericardial fluid fluid that separates the 2 layers of the percardium; reduces friction on the heart
epicardium outer most layer of the heart wall; inner layer of the pericardium
endocardium innermost layer of the heart wall
myocardium heavy muscular layer of the heart wall
mitral valve separates left atrium and left ventricle; AKA bicuspid valve
tricuspid valve separates right atrium from right vnetricle
superior vena cava one of largest veins; carries deoxygenated blood from the head, neck and arms; empties into the R atrium
inferior vena cava one of the largest veins; carries deoxygentated blood from the lower part of the body to the R atrium
pulmonary refers to the lungs
semilunar half moon
pulmonary artery carries oxygen poor blood from the R ventricle to the lungs; only exception to the rule that arteries always carry oxygen rich blood
arteries carry blood away from the heart
veins carry oxygen poor blood toward the heart
oxygenated rich with oxygen
deoxygenated oxygen poor
aorta largest vessel (artery); arises out of the left ventricle; carries oxygenated blood to the rest of the body
aortic semilunar valve half moon shaped valve at the junction of the aorta and the left ventricle
aortic arch the curve that the aorta makes before it begins to descend behind the heart
right & left pulmonary veins bring oxygenated blood directly from the lungs into the left ventricle
apex pointed end of the heart
left anterior descending artery first arterial branch off of the aorta that feeds the heart muscle specifically the left heart; AKA the "widow maker"
coronary refers to crown, head
septum muscular wall that separates the right heart from the left heart
lumen opening in vessels through which blood flows
systemic circulation occurs between heart and the rest of the body's tissues except the lungs
pulmonary circulation occurs between the heart and the lungs
electrical implulses arise in nerves and cause the myocardium to contract & relax
arterioles smaller, thinner branches of arteries; connect arteries to capillaries
venules small veins that join to form larger veins
pulse rhytmic expansion & contraction of an artery produced by pressure of the blood moving through the artery
plasma liquid portion of the blood; 92% water
serum plasma with clotting proteins removed
erythrocytes red blood cells; RBC
hemoglobin iron containing pigment of erythrocytes that carries oxygen from the lungs to the tissues
white blood cell leukocyte; protect aginst harmful invaders
phagocytosis process of engulfing and digesting germs
platelets fragments of cells that aid in clotting the blood
A,B,AB,O four main blood types; ois universal donor; AB is universal recipient
blood gases gases that dissolve in blood; oxygen, nitrogen, carbon dioxide
cardiologist medical doctor who specializes in diagnosing and treating diseases of the heart
hematologist medical doctor who specializes in the diagnosis and tretment of diseases of the blood
ather/o fatty substance
coronary artery disease CAD; atherosclerosis of the arteries of the heart
atherosclerosis hardening and narrowing of the arteries due toa buildup of cholesterol plaque
plaque abnormal buildup of hardened substance
ischemia deficiency in blood supply
ischemic heart disease a group of cardiac disabilities that are due to insufficient blood supply the heart
angina pectoris severe suffocating,choking chest pain due to incomplete blockage of the supply of oxygen to the myocardium
myocardial infarction AKA a heart attack; blocckage of a coronary artery resulting in tissue death of the myocardium
occlusion closing off
infarct localized area of necrosis
necrosis tissue death
carditis inflammation of the heart
endocarditis inflammation of the endocardium
pericarditis inflammation of the pericardium
bacterial endocarditis inflammation of the lining or valves of the heart caused by bacteria
myocarditis inflammation of the myocardium
valvulitis inflammation of the heart valves
mitral valve prolaspe abnormal protrusion of the mitral valve; results in incomplete closure of the valve causing leakage of blood
prolapse falling down
heart murmur sound of an abnormally closing valve
arrhythmia irregular rhythm of the heartbeat
bradycardia abnormally slow heartbeat
tachycardia abnormally fast heartbeat
flutter arrhythmia caused by rapid & irregular atrial contractions
palpitation pounding or racing heartbeat
fibrillation rapid, random, & ineffective contraction sof the heart muscle
atrial fibrillation AKA A fib; atria beat faster that the ventricles; produces irregular quivering of the atria and a rapid ventricular beat
ventricular fibrillation AKA V fib; irregular contraction sof the ventricles; fatal unless reversed with defibrillation
angio- pertains to vessel
angiitis inflammation of a vessel
hemagioma benign tumor made up of newly formed blood vessels
aneurysm weak spot in an artery that can rupture causing rapid loss of blood and is often fatal
polyarteriitis inflammation of many arteries
phlebitis inflammationof a vein
varicose veins abnormally swollen veins usually in the legs
thrombus blood clot attached to the inside wall of a vein or artery
thrombosis abnormal condition where a clot forms inside a vessel
coronary thrombosis damage to the heart caused by a thrombus blocking a coronary artery
embolus foreing object such as air, fat, gas, tissue, tumor or clot circulating in the blood
embolism blockage of a vessel by an embolus
cholesterol fatty substances that travel in the blood; essential for good health unless in excess; circulates in protein packages called lipoproteins
Low-density lipoprotein AKA LDL or 'bad cholesterol'; excessive quantities add to cholesterol buildup
high-density lipoproteins AKA HDL or 'good cholesterol'; doesn;t contribute to cholesterol buildup; carries unneeded cholesterol to liver to be processed
triglycerides fatty acids attached to glycerol; normal in blood in small quantities
hyperlipidemia having excess quantities of cholesterol, triglycerides, & lipoproteins in the blood
Created by: dgdooley