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What causes the AV valve to open?
increasing pressure from atria filling
what completes the emptying of the atria?
atrial kick! accounts for 10-15% of cardiac output
one way blood flow and prevent backflow
chordae tendinae attach
the MV to the pap muscles
the mitral vavle is opened during
only valve with two leaflets
Mitral... anterior and posterior leaflets
out of the two mitral vavles which is usually larger?
the anterior leaflet
the mitral valve closes...
halfway through the QRS wave
aortic valve opens
at the end of QRS
papillary muscles can have ______ or ________ heads
single or multiple heads
The anterior/_______ pap muscle is located
Lateral... on the sternocostal endocardial border
The posterior/ _____ pap is located
on the diaphragmatic border
Mitral annulus is
the connecting zone between the LA and LV
SUports the base of the leaflets
normal valve area
The Tricuspid valve has three leaflets what are their names?
Medial/ septal (most inferior leaflet)
RIght Heart Diease is ____ _________ than Left Heart Diease
any condition that affects the left heart valves can
affect the right heart valves (stenosis regurgitation)
PSAX at the base is a good view for
assessing tricuspid regur. and ASDs
alsooo optimal view to see all three aortic cusps
mitral and tricuspid
aortic and pulmonary
the names of the 3 aortic lealets
Left, and right coronary, and noncoroanary cusp
av opens after
isovolumic contraction (IVC) when the LV pressure exceeds the aortic pressure
the aortic leaflets shown in PLAX
Right coronary and noncorarnary cusp
aortic valve is closed in
aortic vavlve is open in
normal aortic valve area
Pulmonary valve leaflets are like the ______ leaflets but....
Aortic Valve but thinner
The cusps of the pulmonary valve
where can you see the pulmonary valve
PLAX (RV outflow)
PSAX at the base
The sinus of Valsalva is
the part of the aorta where the Coronary ostia are found.
normal adult peak AV velocity
normal Pv velocity
between .5and .9 m/sec
Heart valves jweightm