the scab sloughs off once the epidermis has been restored to normal thickness, collagen fibers become more organized, fibroblasts decrease in number and blood vessels are restored to normal.
the clot becomes a scab, epithelial cells migrate beneath the scab to bridge the wound, fibroblasts migrate along fibrin threads and damaged blood vessels begin to regrow.
is a function of the dermis because of the extensive network of blood vessels in the dermis which carry 8% to 10% of the total blood flow in a resting adult.
the most active form of Vitamin D, is produced from a precursor molecule in the skin by ultraviolet light; it is modified by enzymes in the liver and kidneys and aids in absorption of calcium from foods.
the part of the nail body that extends past the distal end of the digit or phalanx.
a raised scar which is elevated above the normal epidermal surface but which remains within the boundaries of the original wound.
destroys the epidermis and part of the dermis causing some skin functions to be lost, redness, blister formation, edema and pain.
destroys the epidermis, the dermis and the subcutaneous layer causing most skin function to be lost along with marked edema & numbness
the whitish, crescent-shaped area of the proximal end of the nail body.
is a vascular and cellular response that occurs helping eliminate microbes, foreign material and dying tissue from a wound.
are sensations that arise in the skin including touch, pressure, vibration and tickling.
the visible portion of the (finger or toe) nail.
the proximal portion of the epithelium deep to the nail root where cells divide by mitosis to provide growth.
plates of tightly-packed, hard, dead, keratinized epidermal cells.
a thickened region of stratum corneum which secures the nail to the fingertip (or tip of the toe).
basal cell carcinomas
About 78% of all skin cancers; they arise from cells in the stratum basale and rarely metastasize.
squamous cell carcinomas
About 20% of all skin cancers; are caused from sun damage; they arise from squamous cells of the epidermis and may metastasize.
from the skin includes sweat, water, heat, ammonia, urea, some salts and carbon dioxide.
a narrow band of epidermis, stratum corneum, which extends from and adheres to the lateral border of the nail wall.
are caused by a constant deficiency of blood flow to tissues typically those overlying a bony projection.
a blood clot form in a wound and loosely unites the wound edges; a vascular and cellular response occurs that helps eliminate microbes, foreign material & dying tissue.
extensive growth of epithelial cells beneath the scab, deposition by fibroblasts of collagen fibers in random patterns and growth of blood vessels.
a raised scar which is elevated above the normal epidermal surface but which extends beyond the boundaries of the original wound.
rule of nines
a quick means for estimating the surface area affected by a burn in an adult.
a phenomenon in which in response to an epidermal injury, basal cells surrounding the wound break contact with the basal membrane & migrate across the wound; they stop migrating when they encounter other epidermal cells
the portion of the nail that is buried in a fold of the skin.
is the tissue that fills the wound during the migratory phase of wound healing.
by the skin includes fat-soluble vitamins, some drugs and organic solvents.
About 2% of all skin cancers ; arise from melanocytes; they metastasize rapidly and can kill within months of diagnosis.
tissue damage caused by excessive heat, electricity, radioactivity or corrosive chemical that break down the proteins in skin cells.
involves only the epidermis and is characterized by pain and redness but no blisters.