Find Free Open Courseware. Your search will find free online courses from MERLOT, MIT OPENCOURSEWARE, and the other universities providing OpenCourseWare. Open Chemistry OpenCourseWare. University of California Irvine (UCI) has produced video-intense open courses that a UCI undergraduate needs for the Chemistry major.
As a wound heals scar tissue fills in the damaged places. While a scar may look quite dramatic after itâs first formed, over time its appearance, size and color naturally fade. On average, most scars can take 6 to 18 months to heal naturally. More severe scars can take years.
Even after the wound is healed, it can take up to two years for a scar to settle into its permanent appearance [source: Ditkoff ]. Scar skin tissue isn't like normal skin tissue -- it doesn't have sweat glands or hair growing from it.It's also more vulnerable to ultraviolet rays.f the cut or scrape was a shallow one that only affected the outer epidermis layer, then there shouldn't be a scar when your skin heals itself. If the cut went deeper, into the dermis of the skin, then cicatrisation begins as your body moves to create fibrous scar tissue from the granular tissue.