Final answer:
The remodeling phase of wound healing begins around three weeks post-injury and can last for a year or more, culminating in a mature scar and a restoration of tensile strength to the area.
Step-by-step explanation:
The remodeling phase is the final stage of the wound healing process. It follows the initial inflammatory phase and the proliferative phase where granulation tissue forms. During remodeling, collagen is reorganized, and the wound fully closes and strengthens. This phase can begin around three weeks after the injury and may last for a year or more, depending on the severity of the wound and the individual's health. It is during the remodeling phase that a mature scar forms and the healed area gains tensile strength.