ATI Pathophysiology Practice Exam 2025 – Complete Study Resource

Question: 1 / 400

What does fibrosis refer to?

The formation of new cells in the body

The thickening and scarring of connective tissue

Fibrosis refers specifically to the thickening and scarring of connective tissue, often resulting from injury or inflammation. This process involves the excessive accumulation of fibroblasts and the deposition of collagen in the affected tissue, leading to a loss of elasticity and function in the organ or area involved. Fibrosis can occur in various tissues throughout the body, such as the lungs (pulmonary fibrosis), liver (cirrhosis), kidneys, and heart, among others.

In contrast, the formation of new cells pertains to processes like regeneration or hyperplasia, while breakdown of muscle fibers refers to atrophy or degeneration, and the abnormal growth of blood vessels is indicative of a condition like angiogenesis. Understanding fibrosis is important in pathophysiology as it relates to many chronic diseases and can significantly impact health outcomes.

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The breakdown of muscle fibers

The abnormal growth of blood vessels

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