ANATOMY

Detailed explanation-1: -During inspiration (inhalation), the diaphragm and rib cage muscles contract. The diaphragm moves downward (enlarging the chest cavity) and the rib cage moves upward (enlarging the chest cavity). This enlargement reduces the pressure within the chest and atmospheric air pressure forces air into the lungs.

Detailed explanation-2: -In COPD, the airways of the lungs (bronchial tubes) become inflamed and narrowed. They tend to collapse when you breathe out and can become clogged with mucus. This reduces airflow through the bronchial tubes, a condition called airway obstruction, making it difficult to move air in and out of the lungs.

Detailed explanation-3: -Breathing in When you breathe in, or inhale, your diaphragm contracts and moves downward. This increases the space in your chest cavity, and your lungs expand into it. The muscles between your ribs also help enlarge the chest cavity. They contract to pull your rib cage both upward and outward when you inhale.

Detailed explanation-4: -They’re often used to treat long-term conditions where the airways may become narrow and inflamed. This includes: asthma – a common lung condition caused by inflammation of the airways. chronic obstructive pulmonary disease (COPD) – a lung disease that blocks the airways.