On the left side, blood flows from the LA to the LV through the open bicuspid valve during passive filling. Atrial systole pushes more blood into the LV, and during ventricular systole, the bicuspid valve closes, pressure rises, the semi-lunar valve opens, and blood is ejected into the aorta.
- blood from pulmonary vein enters LA - LA fills with blood - bicuspid valve open - passive filling of LV - semi-lunar valve shut - atrial <b>systole</b>, atrial blood pressure increases - blood moves down pressure gradient into ventricles through open bicuspid valve - semi-lunar valve shut - ventricular <b>systole</b> - bicuspid valve closes to prevent backflow - ventricular blood pressure increases - semi lunar valve opens - blood moves down pressure gradient from LV into aorta
| Front | Describe the Cardiac Cycle on the left side |
|---|---|
| Back | - blood from pulmonary vein enters LA - LA fills with blood - bicuspid valve open - passive filling of LV - semi-lunar valve shut - atrial systole, atrial blood pressure increases - blood moves down pressure gradient into ventricles through open bicuspid valve - semi-lunar valve shut - ventricular systole - bicuspid valve closes to prevent backflow - ventricular blood pressure increases - semi lunar valve opens - blood moves down pressure gradient from LV into aorta |
Tags: blood
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