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

Which event is most characteristic of granulation tissue?

Granulation tissue represents the vascularized connective tissue that fills a healing wound. It is characterized by new capillaries (angiogenesis), active fibroblasts laying down extracellular matrix, and inflammatory cells all within a loose, soft matrix. This combination gives the wound a red, granular appearance and provides the framework for continuing repair and epithelialization. In the early granulation tissue, fibroblasts produce mainly type III collagen, which is later replaced by stronger type I collagen as remodeling occurs. Dense scar with collagen I describes the later, mature scar where the tissue is more fibrous and less vascular—not the highly cellular, vascular granulation tissue. Epithelial thickening alone points to epithelialization rather than the full granulation tissue process. Necrotic tissue indicates tissue death, not the regenerative, cellular, and vascular features that define granulation tissue.

Granulation tissue represents the vascularized connective tissue that fills a healing wound. It is characterized by new capillaries (angiogenesis), active fibroblasts laying down extracellular matrix, and inflammatory cells all within a loose, soft matrix. This combination gives the wound a red, granular appearance and provides the framework for continuing repair and epithelialization. In the early granulation tissue, fibroblasts produce mainly type III collagen, which is later replaced by stronger type I collagen as remodeling occurs.

Dense scar with collagen I describes the later, mature scar where the tissue is more fibrous and less vascular—not the highly cellular, vascular granulation tissue. Epithelial thickening alone points to epithelialization rather than the full granulation tissue process. Necrotic tissue indicates tissue death, not the regenerative, cellular, and vascular features that define granulation tissue.