Official-PS4 Prices. $399.00 USA Â£349 UK â¬399 EUR. Sony officially announced the price of the Playstation 4 - $399.00. A year and a half after the official release of both the Xbox One and the PS4, we've seen the Xbox One already slash it's price $50.
Chronic obstructive pulmonary lung disease (COPD) is a lung disease in which the lungs are damaged, making it hard to breathe. In COPD, the airways- the tubes that carry air in and out of your lungs are partly obstructed, making it difficult to get air in and out. The airways branch out like an upside-down tree, and at the end of each branch are many small, balloon-like air sacs called alveoli (al-VEE-uhl-EYE).
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.