Final answer:
Granulation tissue at a wound site is identified by the increased production of connective tissue and new blood vessels, playing a critical role in the healing process.
Step-by-step explanation:
The presence of granulation tissue at a wound site is primarily identified by increased production of connective tissue and the vascularization of the new tissue. This process occurs after the initial phases of wound healing, where toxins are removed, blood loss is reduced via clotting, and a scab may form to lower infection risk.
The repair phase includes regeneration, where fibroblasts deposit new collagen and promote angiogenesis, leading to the growth of new blood vessels within the granulation tissue. As the clot retracts and dissolves, granulation tissue plays a critical role in bringing the edges of the wound together, eventually leading to the formation of a scar in the healed area.