Term
|
Definition
| Bring the action potential into the interior of the cell |
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Term
| Where are T-tubules located? |
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Definition
| Invaginate the cell at the Z-line |
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Term
|
Definition
| It is the end-diastolic volume |
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Term
| What is the end-diastolic volume related to? |
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Definition
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Term
| T/F Increasing venous return will decrease end-diastolic volume. |
|
Definition
| False, it will increase end-diastolic volume. |
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Term
| What two places are the after load associated with? |
|
Definition
| Left ventricle and Right ventricle |
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Term
| What is the afterload for the right ventricle? |
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Definition
|
|
Term
| What is the afterload for the left ventricle? |
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Definition
|
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Term
| Velocity of contraction at a fixed muscle length is (maximal/minimal) when the afterload is zero. It is deccreased by (increases/decreases) in afterload |
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Definition
|
|
Term
| Explain Frank-Sterling relationship |
|
Definition
| An increase in stroke volume and cardiac output will occur in response to an increase in end-diastolic volume |
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Term
| T/F The Frank-Starling relationship matches cardiac output to venous return |
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Definition
|
|
Term
| T/F The more pressure you have in the aortic blood the greater the stroke work |
|
Definition
|
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Term
|
Definition
| The mechanical work done by the heart during a single heart beat |
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Term
| What feature on the ventricular pressure-volume loops represents the stroke work? |
|
Definition
|
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Term
|
Definition
|
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Term
|
Definition
| The volume of blood ejected from the left ventricle on each heart beat. |
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|
Term
| What is the equation for stroke volume? |
|
Definition
|
|
Term
| How is cardiac output measured? |
|
Definition
| Cardiac output = SV x Heart rate |
|
|
Term
| How is stroke work measured? |
|
Definition
| SW = SV x Aortic pressure |
|
|
Term
| How is cardiac index measured? |
|
Definition
| Cardiac output/BSA (body surface area) |
|
|
Term
| How is ejection fraction measured? |
|
Definition
| EF(%) = SV/EDV x100 = (EDV - ESV)/EDV x 100 |
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|
Term
| In regards to strove volume, an increase in preload will result in an (increase/decrease) in stroke volume |
|
Definition
| Increase in stroke volume |
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|
Term
| In regards to stroke volume, an increase in after-load will result in a (increase/decrease) of stroke volume |
|
Definition
| Decrease in stroke volume |
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