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Elleeze D. Empiales posted an update in the group
MT 30-BB (Histology Art 2024-2025) 10 months, 1 week ago This illustration contrasts a healthy lung with a smoker’s lung, vividly showcasing the damage smoking can inflict. The healthy lung appears pink and cheerful, representing clear airways and efficient gas exchange. In contrast, the smoker’s lung is darkened and sad, indicating tar buildup and impaired function. The magnified histological view highlights the microscopic damage: the normal pseudostratified ciliated columnar epithelium is often replaced by squamous epithelium in a process called **squamous metaplasia**. This change, a response to chronic irritation from smoke, compromises the lung’s ability to clear mucus and pathogens, increasing the risk of infections and cancer. This image underscores how smoking not only affects lung appearance but alters vital cellular structures.
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