This sound should be distinguished from the sound of a systole, ventricular systole, and the filling phase of early ventricular diastole.
12.
This significant historic discovery was made approximately 500 years after Sir William Harvey's discovery of the mechanical function of Ventricular Systole.
13.
This appears to " function as a decompression chamber during left ventricular systole and during other periods when left atrial pressure is high ".
14.
After ventricular systole, the pressure in the left ventricle decreases as it relaxes and begins to fill up with blood from the left atrium.
15.
In normal individuals, during ventricular systole, the pressure in the ascending aorta and the left ventricle will equalize, and the aortic valve is open.
16.
The reduced volume in the right ventricle allows the pulmonic valve to close earlier at the end of ventricular systole, causing P 2 to occur earlier.
17.
As the ventricular systole begins, pressure within the ventricle rises and the AV valve closes producing the'first heart sound'( S 1 ).
18.
The cardiac cell exhibits a positive potential during ventricular systole, becomes depolarized, and permits calcium ions to rush in by the sodium-calcium exchanger.
19.
At the end of ventricular systole, when the pressure in the right ventricle falls rapidly, the pressure in the pulmonary artery will close the pulmonary valve.
20.
Left atrial contraction ( left atrial systole ) ( during left ventricular diastole ) causes added blood to flow across the mitral valve immediately before left ventricular systole.
