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toxic. The lungs are the place in the body where essential oxygen is taken in, and toxic carbon dioxide is released. When the lungs have difficulty doing their job, other organs in the body have difficulty doing their jobs. Therefore, the health of the lungs has direct and immediate effects on the overall health of the body. 1
Stem cells in the lung. Our lungs work hard. In an average lifetime, human lungs take 20-40 million breaths and experience a daily airflow of between 7000 and 10,000 litres. Mammalian lungs are made up of two distinct regions:1. The conducting airway tubes, including the trachea, bronchi, and bronchioles. 2.n normal lungs, progenitor cells are present in abundance throughout each region. These cells divide to replace old or damaged lung cells, which keeps the lung healthy. The progenitor cells include tracheal basal cells, bronchiolar secretory cells (known as club cells), and alveolar type 2 cells.