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Jun 24, 2023 · Asthma is primarily involved in the bronchial tree, with its primary job to distribute air throughout the lungs until reaching the alveolar sacs. The bronchi stem from the end of the trachea, which divides into left and right bronchi.
Asthma is a common chronic disorder of the airways that involves a complex interaction of airflow obstruction, bronchial hyperresponsiveness and an underlying inflammation. This interaction can be highly variable among patients and within patients over time.
Pathophysiology. Asthma is usually mediated by immunoglobulin E (IgE) and precipitated by an allergic response to an allergen. IgE is formed in response to exposure to allergens such as pollen or animal dander [4] Sensitisation occurs at first exposure, which produces allergen-specific IgE antibodies that attach to the surface of mast cells.
May 3, 2024 · Asthma is characterized by complex pathophysiology involving airway inflammation, intermittent airflow obstruction, and bronchial hyperresponsiveness. The condition presents various signs and symptoms, such as wheezing, coughing, shortness of breath, and chest tightness.
Pathophysiology of Asthma, Figure A shows the location of the lungs and airways in the body. Figure B shows a cross-section of a normal airway. Figure C shows a cross-section of an airway during asthma symptoms. Specialty: Pulmonology
Apr 6, 2024 · Identify and avoid asthma triggers. A number of outdoor allergens and irritants — ranging from pollen and mold to cold air and air pollution — can trigger asthma attacks. Find out what causes or worsens your asthma, and take steps to avoid those triggers. Monitor your breathing.
Asthma is a disease of diffuse airway inflammation caused by a variety of triggering stimuli resulting in partially or completely reversible bronchoconstriction. Symptoms and signs include dyspnea, chest tightness, cough, and wheezing. The diagnosis is based on history, physical examination, and pulmonary function tests.
