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16 Cards in this Set
- Front
- Back
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Explain how the body establishes a pressure gradient for fluid flow |
The heart contracting establishes the pressure gradient flow |
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Whats the effect that flow tube radius has on flow rate |
Bigger radius increased flow rate |
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Describe the effect that radius changes have on the laminar flow of a fluid |
Increased radius increased flow |
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Describe the components in the blood that affect viscosity. |
The blood consists of plasma proteins, wbcs,rbcs, and platelets |
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Explain change of flow cause of viscosity |
Bruh |
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Describe the effect polycythemia would have on viscosity and on blood flow |
Polycethmia is the increase of rbcs, cause viscosity to increase and flow decrease |
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Which is more likely, blood vessel radius orblood vessle length change |
Blood vessel radius, contraction or relaxation |
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How would obesity effect blood flow? |
Increases vessel length |
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What would increasing tube radius effect with flow, resistance, and pump rate? |
Pump rate: increases Flow:increases Resistance:decreases |
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How would the heart compensate for flow rate changes to maintain blood pressure |
Heart pumps faster |
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Describe the Frank-starling law in the heart |
When the stretch of the cardiac muscle cell becomes longer the contraction is greater. |
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Pump rate increases stroke volume...? |
Decreases |
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How does the heart alter stroke volume |
Changing contractibility |
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Intrinsic factors that control stroke volume |
Contractibility force behind pump , preload: vol of blood ventricles pump |
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How could the heart compensate for peripheral resistance? |
Increasing contractibility |
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Would it be better to adjust heart rate or blood vessel diameter to achieve blood floe changes at a local level |
Blood vessel diameter |
