If the left atrioventricular valve in the heart does not close completely it results in blood flowing back into the atrium during ventricular systole.
What would be the immediate effect of this back flow?
1 )
blood flowing from the heart carries less oxygen because less blood enters the lungs
2 )
diastolic pressure in the left ventricle falls because less blood enters the pulmonary artery
3 )
lower systolic pressure in the left atrium and less blood enters the pulmonary artery
raised pressure in the left atrium and less blood enters the aorta
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