Answer:The blood then goes through the left side of the atrium to the left ventricle. It leaves the heart through the Aorta. Then the blood travels through the capillaries releasing carbon dioxide to the cells for gas exchange and absorbs oxygen. The gas exchange occurring here between the oxygen and carbon dioxide molecules occurs in the alveoli of the organs. The blood then goes back to the left side of the atrium through the veins and will go through the process again.
Step-by-step explanation: