Lecture 9- Valvular and Congenital Defects Flashcards
lubb
first heart sound
0.14 secs
AV valves closed- ventricular systole
dupp
second heart sound
0.11 secs
SL valves closed- ventricular diastole
third heart sound
occasional
turbulent blood flow into ventricles
fourth heart sound
atrial contraction
regurgitation
valves don’t seal and blood leaks back
detectable turbulence
stenosis
valvular growths narrow openings
increased pressure
causes turbulence and murmur
murmurs
abnormal sounds
functional murmurs
benign
common in children
not pathologic, normal
rheumatic fever
most common cause of valvular defect
autoimmune disease
initiated by streptococcal infection
aschoff bodies
area of necrotic tissue
pancarditis
all three layers
myocarditis
only myocardium
endocarditis
only endocardium
pericardial effusion
causes audible friction rub
walls rub against each other
poly-arthritis
usually first symptom in rheumatic fever
more than 5 joints at once