PATHOPHYSIOLOGY OF BRONCHIAL ASTHMA.

Bronchial asthma is a non-infectious chronic disease of the respiratory tract. Knowing its pathophysiology helps a lot. It helps to avoid sudden attacks. Bronchospasm (narrowing of the bronchial space) due to specific immunological (sensitization and allergy) or non-specific mechanisms, characterized by recurrent wheezing, shortness of breath, asthma attacks, chest tightness and manifested by cough.