hello I am the red blood cell, I am going to show you my daily routine.
I start the process of pulmonary circulation. I am carried by the vena cava to the right atrium where pressure builds and I am shoved out into the right ventricle
I then take a trip through the pulmonary artery and into the lungs where I leave the carbon dioxide in the alveoli and exchange it with oxygen.
Fully oxygenated, I swim with the rest of my friends through the pulmonary viens and enter the left atrium of the heart. when the pressure becomes increases, I am forced to move into the left ventricle.Then, this chamber contracts and I get sent to the aorta .
Then I leave the heart and travel to the capillaries while giving away the oxygen I collected and pick up carbon dioxide.
I am now deoxygenated and I travel along in the veins with the plasma, white blood cells, and platelets. Once I return to the heart, I start the pulmonary circulation all over again.