NR 283 EXAM PREP VERIFIED Pathophysiology COMPLETED 2023/20241. What is the difference between pathogenesis and etiology? Provide an example of each. - Pathogenesis is the mechanism or process by which a disease develops, while etiology is the cause or origin of a disease. For example, the pathogenesis of tuberculosis is the invasion and multiplication of Mycobacterium tuberculosis in the lungs, while the etiology of tuberculosis is exposure to the bacterium through inhalation or contact. 2. What are the four main types of cellular adaptation? Explain how each one helps cells cope with stress or injury. - The four main types of cellular adaptation are hypertrophy, hyperplasia, atrophy, and metaplasia. Hypertrophy is the increase in cell size, which helps cells increase their functional capacity. Hyperplasia is the increase in cell number, which helps cells compensate for tissue loss or increased demand. Atrophy is the decrease in cell size or number, which helps cells reduce their metabolic activity and conserve energy. Metaplasia is the change in cell type, which helps cells adapt to a different environment or stimulus. 3. What are the three main types of necrosis? Describe the morphological and clinical features of each one. - The three main types of