Prepare for the Tissue Injury, Healing, and Pain Test. Utilize flashcards and multiple-choice questions with hints and explanations. Ensure you're ready for the exam!

Multiple Choice

In the wound healing sequence, which event occurs around day 3-5 post-injury in a typical clean wound?

During wound healing, the proliferative phase follows the initial inflammatory response. By about day 3 to 5 in a typical clean wound, granulation tissue begins to form in the wound bed. This tissue is rich in new capillaries (angiogenesis) and fibroblasts that lay down extracellular matrix, producing a red, granular appearance. Granulation tissue fills the defect and provides the scaffold that allows epithelial cells to migrate over the wound surface and for wound contraction to occur. Epithelialization does start early, within 24–48 hours, but the hallmark event you’d expect to see around day 3–5 is the formation of granulation tissue. Wound dehiscence is not a normal scheduled event in this timeframe and scar remodeling happens later, over weeks as collagen is reorganized. So, granulation tissue formation around day 3–5 is the best fit.

During wound healing, the proliferative phase follows the initial inflammatory response. By about day 3 to 5 in a typical clean wound, granulation tissue begins to form in the wound bed. This tissue is rich in new capillaries (angiogenesis) and fibroblasts that lay down extracellular matrix, producing a red, granular appearance. Granulation tissue fills the defect and provides the scaffold that allows epithelial cells to migrate over the wound surface and for wound contraction to occur. Epithelialization does start early, within 24–48 hours, but the hallmark event you’d expect to see around day 3–5 is the formation of granulation tissue. Wound dehiscence is not a normal scheduled event in this timeframe and scar remodeling happens later, over weeks as collagen is reorganized. So, granulation tissue formation around day 3–5 is the best fit.