Summary of Immunology of the Lung

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The lungs are essential for exchanging oxygen and carbon dioxide in the body. They are also susceptible to damage from harmful microbes and particulates. The immune cells in the lungs help to repulse invaders and repair damage, but this process can sometimes result in diseases such as asthma.

  • 00:00:00 The lungs are where the body draws in vital oxygen and exchanges it for carbon dioxide. Every breath we take is accompanied by potentially harmful microbes as well as particulates which can damage delicate lung tissue. The lungs are enriched in immune cells that repulse invaders and repair injury, but this potent arsenal comes at a heavy cost, with over reactions or inappropriate responses resulting in diseases such as asthma. The lungs are composed of increasingly finer tubules first comes the truck here and the bronchi, which are then divided into the bronchioles which are wrapped in a muscular sheath at the ends of the bronchioles. A microscopic air filled sac called an alveolus in asthma most of the harmful immunological events occur within the bronchi and bronchioles. The bronchial wall is made up of an epithelium covered in tiny hairlike structures called cilia and interstitial and muscle cells. These cells discharge a thin layer of mucus into the bronchial lumen. The mucus is continually swept back up through the lungs by the action of the cilia this system is known as the mucus escalator and is important for removing inhaled particles trapped within the mucus embedded throughout the bronchial wall. Our immune cells such
  • 00:05:00 The lung is a vital organ in the respiratory system that helps to remove oxygen from the air we breathe. The lung also helps to process and store oxygen-rich blood.

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