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Video: An asthma attack – Mayo Clinic

When you are not acquiring bronchial asthma signs or symptoms, your airways are very clear. Air can effortlessly movement in and out of your lungs.

When an bronchial asthma attack starts, the easy muscle tissues all around the outside of the tubes could tighten. The airways, or bronchial tubes, in the lungs become inflamed and swollen.

This will make it tough for air to pass by way of the opening. The mucous membrane lining in the tubes starts to create thick mucus, which builds up and more blocks the airways.

This tightened airway could outcome in a wheezing seem and shortness of breath — signs and signs or symptoms of an bronchial asthma attack.