CELL AND TISSUE REGENERATION NORMAL Regeneration and scar formation. After mild injury,which Mild,superficial injury Severe injury damages the epithelium but not the underlying tissue,resolution occurs by regeneration,but after more severe injury with damage to the connective tissue,repair is by scar REGENERATION SCAR FORMATION formation. 。。●g Mechanisms of tissue repair Regeneration and scar formation. After mild injury, which damages the epithelium but not the underlying tissue, resolution occurs by regeneration, but after more severe injury with damage to the connective tissue, repair is by scar formation. Mechanisms of tissue repair CELL AND TISSUE REGENERATION