Epidermal Wound Healing (Nursing)

00:00 So now let's talk about what happens when things go wrong.

00:04 So first, if you were to get a wound on the surface area of the skin or the epidermal layer, The wound is going to heal using two major steps.

00:15 First the stratum basale layer or that layer of stem cells is going to start to rebuild and work toward closing that cut Secondly, these cells are then going to divide and start to replace the original area of the epidermis that was missing.

00:34 This is referred to as the thickening of the epidermis.

00:39 If you get a deeper wound and you actually extend into the dermis or the subcutaneous layer, there's a few more steps that are involved.

00:48 The first step of wound healing involves hemostasis to decease blood loss.

00:54 The vessels constrict and recruit platelets, which help facilitate the formation of a blood clot.

01:00 After this step, you will elicit the inflammatory process.

01:06 The inflammatory response is gonna include the dilation of blood vessels in the area, the recruitment of several different types of immune cells After the blood clot is formed, then the epithelial cells and the epidermis are going to start to migrate again towards each other similar to what happens in epidermal wound healing After this happens, just like an epidermal wound healing, this area is now able to re-thicken or grow.

01:36 Now remember what goes up must come down So after this process is over and we begin to start to replace those cells, we need to return back to normal.

01:48 The blood vessels are going to go back or constrict to their normal size and those immune cells are going to be taken away from the area.