Video: An asthma attack – Mayo Clinic
1 min read
When you might be not owning bronchial asthma signs and symptoms, your airways are obvious. Air can very easily stream in and out of your lungs. 

When an asthma attack begins, the smooth muscular tissues all-around the outside of the tubes may tighten. The airways, or bronchial tubes, in the lungs grow to be infected and swollen. 

This helps make it challenging for air to move by way of the opening. The mucous membrane lining in the tubes begins to make thick mucus, which builds up and further more blocks the airways. 

This tightened airway may final result in a wheezing seem and shortness of breath — symptoms and indicators of an bronchial asthma assault. 
