Explore the concept of tissue hypoxia in this comprehensive video on respiratory physiology and pulmonary medicine. Delve into the definition of hypoxia as inadequate oxygenation of tissue and examine its three primary causes: ischemia, hypoxemia, and hemoglobin abnormalities. Learn about the complications associated with tissue hypoxia and gain a deeper understanding of hypoxemia and hemoglobin-related defects that contribute to this condition. Enhance your knowledge of respiratory physiology and its impact on tissue oxygenation through this informative presentation.