What characterizes granulation tissue in the context of wound healing?

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Granulation tissue plays a crucial role in wound healing and is characterized by its appearance and composition. The correct choice highlights that granulation tissue is an edematous pink substance rich in fibroblasts and new blood vessels. This tissue formation is part of the proliferative phase of wound healing, which follows the inflammatory phase.

Fibroblasts are essential for producing collagen and extracellular matrix, which contribute to the structural integrity of the healing tissue. New blood vessels sprout in this phase to supply nutrients and oxygen necessary for tissue regeneration and to support further healing processes. The edematous quality reflects increased fluid and cellular activity as the body responds to the injury.

This description contrasts sharply with the other options. The first option describing granulation tissue as a dry, scab-like structure does not accurately represent the moist, vascular, and cellular characteristics of granulation tissue. The option about granulation tissue consisting mainly of dead cells is inaccurate, as granulation tissue is alive and actively involved in the healing process. Lastly, granulation tissue forms during the healing process and is not associated with the established scar tissue; therefore, stating it forms after scar tissue is formed does not align with its role in the wound healing timeline.

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