Layers of the epidermis - ✔️✔️-Stratum corneum
Stratum lucidum
Stratum granulosum
Stratum spinosum
Stratum basale (stratum germinativum)
Stratum corneum - ✔️✔️-The thin, most outer layer of the epidermis
Stratum basale - ✔️✔️-Cells originate from the inner most layer of the epidermis which
is known as what?
Dermis - ✔️✔️-Layer of skin that provides tensile strength and protection for the
underlying muscles, bones, and organs.
Blood vessels, nerves, and fibroblasts - ✔️✔️-The dermis contains what three things
that are the only distinctive cell type in the dermis and are responsible for collagen
formation?
Wound or injury - ✔️✔️-A disruption of the integrity and function of tissues in the body.
Acute - ✔️✔️-Caused by trauma or a surgical incision
Chronic - ✔️✔️-Caused by vascular compromise or chronic inflammation; it is a wound
that fails to proceed through an orderly and timely process to produce anatomical and
functional integrity.
Fibrin - ✔️✔️-Protein secreted from the liver
, Partial thickness wound repair - ✔️✔️-These wounds are shallow and have loss of the
epidermis and possibly the dermis layers of the skin
(Scrape or abrasion)
Full thickness wound repair - ✔️✔️-These wounds extend into the dermis and will heal
by scar formation due to deep structural damage
(Pressure ulcers)
Hemostasis - ✔️✔️-The first phase in the healing process where injured blood vessels
constrict and platelets gather to stop bleeding. A fibrin matrix is then formed that later
provides the framework for cellular repair.
Inflammatory phase - ✔️✔️-The second phase in the healing process when mast cells
secrete histamine initiating vasodilation of surrounding capillaries and movement of
serum and white blood cells to damaged tissues. As a result, the patient may present
with redness, edema (swelling), warmth, and throbbing pain.
Proliferative phase - ✔️✔️-Third phase of the healing process which begins and lasts
from 3 to 24 days. Fibroblasts are present and synthesizes collagen; this provides the
matrix for granulation and provides strength and structural integrity to a wound.
Replacement tissue - ✔️✔️-Collagen and granulation tissues are also known as what?
Maturation - ✔️✔️-The final stage of the healing process where the collagen scar gains
strength and the scar tissue usually contains fewer melanocytes.
Pressure ulcers - ✔️✔️-Patients with decreased mobility, decreased sensory
perception, fecal or urinary incontinence, and/or poor nutrition have an increased risk for
development of what?