What is fibrosis primarily associated with in tissue healing?

• A. Increased blood supply
• B. Excessive deposition of fibrin and collagen
• C. Enhanced tissue regeneration
• D. Formation of scar tissue without collagen

Answer: (B)

Fibrosis is primarily associated with the excessive deposition of fibrin and collagen in tissue healing. This pathological process occurs as a result of prolonged inflammation or repetitive injury, leading to the replacement of normal tissue with fibrous connective tissue. This can ultimately impair normal function.

The process of fibrosis involves fibroblasts that proliferate and synthesize collagen, leading to the thickening and scarring of tissues. This collagen deposition is often a response to chronic injury, where the body attempts to repair itself but ends up creating scar tissue instead. This collagen replaces the normal architecture of the tissue and can lead to dysfunction, depending on the tissue type affected.

In contrast, an increased blood supply is associated with the initial inflammatory response rather than the fibrotic phase. Enhanced tissue regeneration is more characteristic of normal healing processes rather than the abnormal healing characterized by fibrosis. Lastly, the formation of scar tissue without collagen does not accurately represent the process of fibrosis, as collagen is a fundamental component of the scar tissue that characterizes this condition.