Ch 8 Med Term Flashcards
cardi/o
heart
my/o
muscle
coron/o
crown
atri/o
atria
ventricul/o
ventricle
valv/o
valve
arteri/o
artery
aort/o
aorta
ven/o
vein
phleb/o
vein
angi/o
vessel
vas/o
vessel
tensi/o
tension or pressure (referring to BP)
mediastinum
cavity where heart is held between the lungs
pericardium
double-walled membrane surrounding the heart
epicardium
external layer of the heart, also known as the visceral layer of the pericaridum
myocardium
middle and thickest layer of the heart; actual heart muscle
endocardium
inner layer of the heart; lines the heart chambers and valves
ischemia
deficiency in the blood supply to an area
infarct
localized area of necrosis caused by an interrupted blood supply; area of necrosis due to ischemia
cardiac output
volume of blood pumped by the heart per unit of time
stroke volume
the volume of blood ejected from the ventricles during each heartbeat
inotropy
force of contraction
arrhythmia
abnormal rhythm of heartbeat
ECG
electrocardiogram/electrocardiograph
systole
contraction/depolarization
diastole
relaxation/repolarization
preload
the ventricular diastolic volume; blood entering the right side of the heart
afterload
impendance to ventricular emptying presented by aortic pressure