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Non-Communicable Diseases, Emergency Care and Mental Health

Non-Communicable Diseases, Emergency Care and Mental Health

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Cross section of a bronchiole and clusters of alveoli
Figure 4.2  A cross-section of a bronchiole and clusters of alveoli (air sacs) showing the blood capillaries covering their surfaces. (Source: The Open University, Chronic Obstructive Pulmonary Disease, SDK125, Case Study 5, Figure 3.6)

 4.1  The human respiratory system