skin Flashcards
what are the 3 main layers of the skin
epidermis
dermis
subcutaneous
what is the pneumonic to remember the layers of the epidermis
come: stratum corneum
lets: stratum lucidum
get: stratum granulosum
sun: stratum spinosum
burnt: stratum basal
what is contained in the dermis
blood vessels/ lymph capillaries sweat glands hair follicles nerve endings pili muscle
what is the job of the subcutaneous layer
shock absorption
fatty tissue
anchors the skin to the underlying muscles
what type of fatty tissue is the subcutaneous layer
epithelial similar to what anchors the heart in place
what are the functions of the skin
secretion Body temperature Melanin production sensation the primary line of defense
what is primary healing
following minimal destruction of the skin’s tissue when the damaged edges are near each other to quickly bind back together
Explain the inflammation process
blood clots and debris fill the gap
phagocytes remove clots and debris to form fibroblast activity.
Fibroblasts secrete collagen to bind wound together.
clots+debris–> phagocytes—>fibroblasts= binds wound
explain proliferation
epithelial cells meet with the epidermis to restore tissue.
The clot above the new tissue becomes a scab taking 3-10 days to remove.
Granulation tissue develops invading the wound with phagocytes and fibroblasts to restore blood supply (Sometimes called the migratory phase)
what is a fibroblast
They secrete collagen for skin flexibility
what do phagocytes do
remove bacteria
explain maturation
Granulation tissue is replaced with fibroblast scar tissue.
collagen fibers re-arrange for strength.
the scab falls off and skin is returned to normal thickness
how is heat lost from the body
Radiation, Convection, Conduction, Evaporation, Exhalation of air.
What is the acronym for the skin healing process
Independent: Inflammatory
Migrants: Migratory
Proactively: proliferate
Mature: Maturation
Explain migratory stage of wound healing
tissue begins to granulate under the scab during the proliferation phase
