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Skin Healing. Surface Area: 1.8 to 2.0 square meters u 7 X from birth to adultThickness: .5 to 3.0 mm average 1 to 2 mm. Horny Layer. Dermis. Basal Layer. Spinous or
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1. General Notes on Tissue Healing
2. Skin Healing
5. Dermis - .5 mm to 3 mm thick
dermal papillae helps hold epidermis in place (ridges - finger prints)
dermis has smooth muscle tissue (pilo erector) bundled with hair follicles
“goose bumps”
Langers lines - lines formed at right angles to direction of natural stretch
caused by gravity & activity (collagen fiber direction)
incisions along these lines tend to form less scar tissue
substantial plastic surgury implications
Hypodermis - Subcutaneous tissue: adipose and areolar tissue
density & cellular arrangement of this tissue determines skin “mobility”
composed
Skin
14. Classification of Muscle Injury Muscle Strain
First degree (mild) – “Strained Muscle”
minimal structural damage and minimal hemorrhage
Second degree (moderate) – “Pulled Muscle”
partial tissue tear, significant loss of function, significant hemorrhage
Third degree (severe) – “Torn Muscle”
complete tear, total loss of function, extensive hemorrhage
16. Classification of Muscle Injury Compartment syndrome: hemorrhage r u pressure in muscle unit
u pressure r d blood flow r ischemia r necrosis r gangrene
Most often result from severe intramuscular contusions
Can be caused by excessive exercise induced muscle damage
causes severe pain, palpable tightness, “shiny” skin appearance
fascial release (surgery) is done within 12 hrs to minimize damage