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22 Cards in this Set
- Front
- Back
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According to the vascular function curve, as right atrial pressure increases, venous return ______.
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decreases
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As venous pressure decreases, venous return _____, an as venouse pressure increases, venous return _____.
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decreases, increases
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At a specific RAP called the mean systemic filling pressure, venous return becomes _____.
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0
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The magnitude of the mean systemic filling pressure is dependant on the _____ in the circulatory system and the _____ of the vasculature.
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volume of blood, compliance
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______ blood volume or ____ venous compliance causes an ______ in venous pressure and venous return, and shifts the vasculature function curve up and to the right.
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increasing, decreasing, increase
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The ______ is the pressure due to the volume of blood contained within the elastic vessels .
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mean systemic filling pressure
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If arteriolar resistance increases, pressure upstream in the arteries _____, while pressure downstream in the capillaries and veains _____, causing a ____ in venous pressure and venous return.
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increases, decreases, decrease
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If arteriolar resistance decreases, pressure in the arteries _____, while pressure in the capillaries and veins _____, causing a ____ in venous pressure and venous return.
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decreases, increases, increase
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Mean systemic filling pressure increases with ____ blood flow and _____ venous compliance, and remains constant with changes in ______.
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increased, decreases, TPR
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Vasodilation _____ the slope of the vascular function curve, while vasoconstriction ____ the slope of the curve.
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increases, decreases
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According to the cardiac function curve, an increase in RAP will cause a ______ in EDV of the right venrticle and cardiac ouput.
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increase
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______ contratility caused by increased sympathetic, increased epinephrine, or a positive inotropic agent shifts the cardiac function curve _____.
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Increased, up and to the left
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Increased contractility shifts the cardiac function curve _____, meaning the heart is ___-effective.
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up and to the left, hyper
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Decreased contractility shifts the cardiac function curve _____, meaning the heart is ___-effective.
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down and to the right, hypo
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______ contratility caused by decreased sympathetic or loss of ventricular tissue shifts the cardiac function curve _____.
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Decreased, down and to the right
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If blood volume increases or compliance decreases the vascular function curve shifts to the ____, raising _____ and increasing _____.
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right, RAP, CO
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If blood volume increases or compliance decreases the vascular function curve shifts to the _____, and the cardiac output curve _____.
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right, is unchanged (contractility has not changed)
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If blood volume increases or compliance decreases the vascular function curve shifts to the right, and the _____ venous return causes the RAP to move to a different on the _____.
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increased, cardiac output curve
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When contractility of the heart increases the _____ shifts up and to the right and the vasular function curve _____.
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up and to the left, does not change
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As the cardiac output curve shifts up and to the left, Right atrial pressure ____, and the ventricle is better able to _____.
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decreases, draw blood
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On cardiac- vascular function curves, if the new point lies on the normal cardiac function curve ____ did not change, but the vascular function curve moved because of ____, ____, or ____.
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blood volume, compliance, TPR(same mean systemic filling pressure, ie. change slope only)
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On cardiac- vascular function curves, if the new point lies on the normal vascular function curve ____, ____, or _____ did not change, but the cardiac function curve moved because of ______.
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blood volume, compliance, TPR, change in ventricular contractility
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