The third change that can happen with asthma is the tightening of the muscles that surround your airways, called bronchoconstriction. Another change that can occur with asthma is extra mucus production, which clogs the airway, making the opening even smaller. When the airway becomes inflamed, it narrows and it is hard for air to flow through. This is when the airway becomes swollen and irritated. If your asthma is left untreated or poorly controlled, changes to the structure of the airway may be permanent. When you have asthma, three main changes can happen in your lungs. Air moves freely through the open airway. A healthy airway is clear with no interior swelling, and the muscle bands around the airways are not tight. Asthma can cause changes within the airway, all of which narrow the opening, making it difficult to breathe. Your lungs react to things that may not bother other people. When you have asthma, there is always a little swelling or inflammation inside the airways, with or without symptoms. Some apparatus dead space may actually reduce total dead space, as an ETT bypasses the majority of anatomical dead space of the patient (nasopharynx).ĭead space from the patient.Speaker 1 (00:02): Asthma is a chronic lung disease that can cause breathing problems throughout someone's lifetime. Types of Dead Spaceĭead space from equipment, such as tubes ventilator circuitry. Glomerular Filtration and Tubular Functionĭead space is the proportion of minute ventilation which does not participate in gas exchange. Functional Anatomy and Control of Blood Flow
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