More Italian actors in the cast of Medici: Masters of Florence. More news about Medici: Masters Of Florence, the drama that was carried out in recent weeks in Florence. This is a TV series in eight episodes that tells the story of the powerful Florentine family who ignited the Italian Renaissance.
Your heart is divided into two separate pumping systems, the right side and the left side. The right side of your heart receives oxygen-poor blood from your veins and pumps it to your lungs, where the blood picks up oxygen and gets rid of carbon dioxide.
How it works: The process of oxygen getting into the blood goes like this. First we inhale air with oxygen in it. Little pockets in the lung called alveoli fill with the air and the oxygen diffuses into capillaries. This oxygenated blood then goes back to the heart where it is pumped around to the rest of the body.