Is there a pressure difference? Is there an open valve? Where will blood flow? *atrium →ventricle *ventricle →atrium *ventricle →aorta *aorta →ventricle

Where will blood flow?

Where will blood flow? From atrium to ventricle!

Is there a pressure difference? Is there an open valve? Where will blood flow? *atrium →ventricle *ventricle →atrium *ventricle →aorta *aorta →ventricle

Where will blood flow?

Where will blood flow? From ventricle to aorta!

Is there a pressure difference? Is there an open valve? Where will blood flow? *atrium →ventricle *ventricle →atrium *ventricle →aorta *aorta →ventricle

Where will blood flow?

Where will blood flow? Absolutely nowhere!

Now let’s look at a figure from the textbook that shows the actual pressure changes in the atrium, ventricle and aorta.

Fig Variations in aortic, atrial and ventricular pressures throughout one cardiac cycle.

Fig