Science: Has does the heart work?

Left Atrium builds up pressure, what happens next?

Blood moves to left ventricle

What happens after the left ventricle?

The Capillary slows down the blood cells letting only one pass at a time.

Left atrium builds up pressure to left ventricle goes through capillaries one blood cell at a time then to body cells then to capillaries again then to right atrium builds up pressure to right ventricle then capillaries and lungs then capillaries and the cycle repeats

Goes to the body cell.

what happens after the body cells?

Then back to the capillaries.

What happens after the blood has been to the capillaries twice?

They move onto the right ventricle where they build up pressure.

From the right ventricle it moves onto the capillarie

then onto the lungs