Term
| What does the P-wave represent? |
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Definition
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Term
| What does the P-wave not include? |
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Definition
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Term
| What does the the PR interval represent? |
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Definition
| Initial depolarization of the ventricles |
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Term
| What causes the PR interval to change length? |
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Definition
| Conduction velocity through the AV node |
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Term
| If AV nodal conduction decreaes, what effect will this have on the PR interval? |
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Definition
| Will increase the PR interval |
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Term
| The heart is sympathetically stimulated, what effect will this have on conduction velocity through the AV node and the PR interval? |
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Definition
| Increase condution velocity through AV node; Decrease PR interval |
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Term
| The heart is parasympathetically induced, what effect would this have on the AV nodal conductance and the PR interval? |
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Definition
| Decrease conductance velocity through the AV node; Increase PR interval |
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Term
| What does the QRS complex represent? |
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Definition
| Depolarization (excitation) of the ventricles |
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Term
| What does the QT interval represent? |
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Definition
| Systole; The entire period of depolarization and repolarization. |
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