While the presence of Islam in West Africa dates back to eighth century, the spread of the faith in regions that are now the modern states of Senegal, Gambia, Guinea, Burkina Faso, Niger, Mali and Nigeria, was in actuality, a gradual and complex process.
Hypoventilation is a condition that arises when air entering the alveoli, small air sacs in the lungs that are the site of respiratory gas exchange, is reduced. This causes levels of oxygen to decrease and the levels of carbon dioxide to increase.
Alveolar hypoventilation syndrome: Alveolar hypoventilation syndrome is listed as a type of (or associated with) the following medical conditions in our database: 1  Lung conditions. 2  Chest conditions. 3  Respiratory system conditions.  Bleeding and coagulation conditions.