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 cells primarily contribute to angiogenesis in wound healing?

Angiogenesis in wound healing is driven primarily by endothelial cells. When a wound forms, low oxygen and inflammatory signals stimulate the release of growth factors like VEGF. Endothelial cells from nearby blood vessels respond by proliferating and migrating into the wound bed, organizing into tubular structures that become new capillaries. This vascular network brings in blood supply and supports the growth of granulation tissue. Fibroblasts, while essential for healing, mainly lay down extracellular matrix and produce cytokines that support tissue repair and can influence angiogenesis indirectly. Keratinocytes are focused on re-epithelializing the surface, and neurons don’t contribute to forming new blood vessels.

Angiogenesis in wound healing is driven primarily by endothelial cells. When a wound forms, low oxygen and inflammatory signals stimulate the release of growth factors like VEGF. Endothelial cells from nearby blood vessels respond by proliferating and migrating into the wound bed, organizing into tubular structures that become new capillaries. This vascular network brings in blood supply and supports the growth of granulation tissue.

Fibroblasts, while essential for healing, mainly lay down extracellular matrix and produce cytokines that support tissue repair and can influence angiogenesis indirectly. Keratinocytes are focused on re-epithelializing the surface, and neurons don’t contribute to forming new blood vessels.