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22 Cards in this Set
- Front
- Back
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How is blood flow in the left vs. right side of heart?
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Equal - both is 5 L/min
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is pressure/resistance higher in pulmonary or systemic circulation?
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systemic.
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where is the
-tricuspid valve? -mitral valve? |
tri = right AV valve
mitral = left AV valve |
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What is the period between Mitral valve closing and Aortic valve opening?
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Systole
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what happens during Systole?
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Ventricular contraction.
1. Isovolumetric contraction 2. Ventricular ejection |
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Systole =
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ventricles contract
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Diastole =
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ventricles relax
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systole =
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ventricles contract
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diastole =
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ventricles relax
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when are ventricles contracting?
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systole
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when are ventricles relaxing?
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diastole
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what occurs between lub and dub heart sounds?
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SYSTOLE - period between mitral valves shutting and semilunar valves shutting.
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what are the 3rd and 4th heart sounds?
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3rd = rapid ventricular filling during early diastole
4th = atrial systole (contraction) during reduced filling |
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what is atrial systole?
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diastasis - reduced filling of the ventricles
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when is diastasis more important?
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during increased heart rates.
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what does stenosis cause?
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-narrowed valve opening
-pressure buildup behind valve -murmur when valve open |
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what does insufficiency cause?
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-abnormal valve closing
-regurgitation murmur when valve is closed. |
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what abnormality is heard when a valve is open?
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stenosis
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what abnormality is heard when a valve is closed?
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insufficiency
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what are 2 stenotic abnormalities of aortic valve?
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-Bicuspid Aortic valve
-Senile Aortic stenosis |
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what is bicuspid aortic valve?
what is senile aortic stenosis? |
Bicuspid = congenital defect, narrow aortic valve restricts BF
Senile = stiff, calcified aortic valve |
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what is a cause of mitral stenosis?
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bacterial rheumatic fever.
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