cardiovascular terminology Flashcards
precordium
region in front of the heart
mediastinum
space that holds the heart
pericardium
membrane enclosing the heart
myocardium
muscular tissue of the heart
endocardium
smooth tissue that lines the inside of the heart
AV valves
tricuspid and mitral; separate atria and ventricles
semilunar valves
aortic and pulmonary; prevent blood backflow
systole
ventricles eject blood into the pulmonary arteries
diastole
ventricles relax allowing blood to fill the chambers
ventricular hypertrophy
left ventricle walls are thickened, cannot efficiently pump
s1
closure of tricuspid and mitral valves
s2
aortic and pulmonic valves
split s1
tricuspid and mitral valves close at different times
split s2
aortic and pulmonic valves close at different times
s3
sound after closure of s2; kentucky
s4
sound before s1 closure
nocturia
need to pee at night disrupting sleep
paraoxysmal
disorders that occur unexpectedly
arrhythmia
irregular heart beat
apical impulse
5th ICS left MCL
preload
force stretching heart muscle before contraction
afterload
force against which the heart has to eject blood
central venous pressure
pressure in the vena cava
heave
precordial impulse that can be palpated; lift
