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6 Cards in this Set
- Front
- Back
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What happens to the left of steady state on the cardiac function/ vascular function curve?
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Cardiac output matches venous return in a frank starling mechanism.
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What happens to the right of steady state on the cardiac function/ vascular function curve?
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Cardiac output is unable to match venous return. The heart is maximally stretched and cannot increase pressure further.
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What is the effect of sympathetic stimulation on the cardiac function curve?
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CO is increased and venous pressure is decreased. Equilibrium shifts up and left.
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What is the effect of increased blood volume on the cardiac function/ vascular function curve?
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Parallel shift in vascular curve so that CO is increased and venous pressure is increased. Filling pressure is increased. Equilibrium shifts up and right
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What is the effect of TPR on the vascular function curve?
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Decreased TPR moves the curve up, causing an increased CO and increased venous pressure. Increased TPR moves the curve down, causing a decreased CO and decreased venous pressure. This results because less resistance causes more blood to flow through the veins.
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What is the effect of TPR on the cardiac function curve?
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Decreased TPR moves the curve up, causing an increased CO and decreased venous pressure. Increased TPR moves the curve down, causing a decreased CO and increased venous pressure. This is because increased afterload decreases CO, causing a buildup in the venous side.
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