Definition for Difference between revisions of "Ventricular filling"
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(Created page with "Ventricular filling is when the ventricular expand and the pressure falls below that of the atria. This leads to the Atrio-Ventricular (AV) valves to open and blood rushes into t...") |
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| − | Ventricular filling is when the ventricular expand and the pressure falls below that of the atria. This leads to the Atrio-Ventricular (AV) valves to open and blood rushes into the ventricles. The ventricular pressure rises and the atrial pressure falls. This ventricular filling occurs in three phases: | + | Ventricular filling is when the ventricular expand and the pressure falls below that of the atria. This leads to the Atrio-Ventricular (AV) valves to open and blood rushes into the ventricles. The ventricular pressure rises and the atrial pressure falls. This ventricular filling occurs in three phases: |
| − | + | *Rapid Ventricular filling | |
| − | + | *Diastasis - slow filling (P wave on ECG occurs at end of this slow filling). | |
| − | + | *Atrial Systole - Contraction of the atrium. The right atrium contracts slightly before the left atrium. | |
| − | As the ventricles fill, the valve leaflets move to the closed position. The End Diastolic Volume = 130 ml, where as only 40 ml is contributed by the atrial systol. | + | As the ventricles fill, the valve leaflets move to the closed position. |
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| + | ''The End Diastolic Volume'' = 130 ml, where as only 40 ml is contributed by the atrial systol. | ||
Latest revision as of 18:42, 14 November 2011
Ventricular filling is when the ventricular expand and the pressure falls below that of the atria. This leads to the Atrio-Ventricular (AV) valves to open and blood rushes into the ventricles. The ventricular pressure rises and the atrial pressure falls. This ventricular filling occurs in three phases:
- Rapid Ventricular filling
- Diastasis - slow filling (P wave on ECG occurs at end of this slow filling).
- Atrial Systole - Contraction of the atrium. The right atrium contracts slightly before the left atrium.
As the ventricles fill, the valve leaflets move to the closed position.
The End Diastolic Volume = 130 ml, where as only 40 ml is contributed by the atrial systol.