Epidermal Wound Healing (Nursing)

by Jasmine Clark

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    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.

    00:35 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.

    00:47 First, once you break through the dermis, this is going to elicit an inflammatory response.

    00:55 The inflammatory response is gonna include the dilation of blood vessels in the area, the recruitment of several different types of immune cells as well as the recruitment of platelets which are then gonna come in and create blood clot.

    01:10 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.

    01:31 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.

    01:43 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.

    About the Lecture

    The lecture Epidermal Wound Healing (Nursing) by Jasmine Clark is from the course Integumentary System – Physiology (Nursing).

    Included Quiz Questions

    1. Stratum basale cells start rebuilding and closing the wound.
    2. Epithelial cells divide and replace original areas of the epidermis.
    3. Blood vessels of the injured area are dilated.
    4. Platelets are recruited to form blood clots.
    5. The body elicits an inflammatory response.

    Author of lecture Epidermal Wound Healing (Nursing)

     Jasmine Clark

    Jasmine Clark

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