Answer
Epidermal wounds are healed by regeneration--that is by replacement of damaged cells by cells of the same kind produced by mitosis of the cells of the stratum basale.
The first response after wound trauma is inflammation; clot formation follows and then scab formation. . Organization and arrangement of blood supply for the new tissue then takes place as the blood clot is replaced by granulation tissue produced by the activity of fibroblasts.
The regenerated epithelial tissue grows under the scab. Eventually, the scab falls off and the fibrous tissue contracts.. If any scar tissue remains it is usually just a slim barely visible line.
Work Step by Step
It is the activity of the stratum basale that obviatesthe the need for the formation of large areas of scar tissue to replace damaged and dead cells and to pull the edges of the wound together.
