Haematosis is the process by which blood becomes oxygenated in the lungs. Deoxygenated blood, which is low in oxygen and high in carbon dioxide, is carried from the body to the lungs through the pulmonary arteries. In the lungs, tiny air sacs called alveoli allow gases to be exchanged. Oxygen from the air passes into the blood, while carbon dioxide from the blood is released into the air to be exhaled. The oxygen-rich blood then returns to the heart through the pulmonary veins, ready to be pumped to all the tissues of the body. This process is essential for providing oxygen to the cells and removing carbon dioxide, keeping the body alive and functioning properly.
MBH/AB