Surfactant is a complex substance containing phospholipids and a number of apoproteins. This essential fluid is produced by the Type II alveolar cells, and lines the alveoli and smallest bronchioles. Surfactant reduces surface tension throughout the lung, thereby contributing to its general compliance. It is also important because it stabilizes the alveoli.
Stagnant anoxia occurs when there is interference with the blood flow, although the blood and its oxygen-carrying abilities are normal. A common cause of general stagnant anoxia is heart disease or interference with the return of blood flow through the veins.
There are four types of HYPOXIA : 1. Hypoxic hypoxia is the most common and is caused by decreased oxygen in air or the inability to diffuse the oxygen across the lungs. If this happens, the person has less than 100% saturation of the blood in the arteries.. Hypoxic hypoxia is the most common and is caused by decreased oxygen in air or the inability to diffuse the oxygen across the lungs. If this happens, the person has less than 100% saturation of the blood in the arteries.