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bi240 healing

grcc bi240 healing

QuestionAnswer
fibrosis occur due to complications or chronic inflammation.
healing by first intention wound cleaned, edges quickly approximated and sutured = less scaring
Healing by second intention Wounds heal from inside out; there is a large break in tissue, jagged edges, more inflammation & longer healing time.
healing process has how many phases? 4: inflammatory, migratory, proliferative & maturation
Inflammatory phase blood clot forms and seals area where proliferation happens, fibroblasts form and phagocytosis.
Migratory phase Epitheleal cells continue to migrate and proliferate, granulation tissue
in migratory phase granulation tissue forms beneath the the scab.
Proud flesh granulation tissue.
Proliferative phase Epi increases in thickness, collagen fibers in regular patterns, fibroblasts supplied, debris/fibrin/leukocytes disappear
maturation phase (remodeling) Scab sloughs off, epi normal, collagen more organized, fibroblasts disappear, vascular restored
When does scar fade? When capillaries decrease; red to white
Complications of scar tissue puckering of skin, keloid formation, adhesion
complications of a scar it can pucker causing a distortion
complications of adhesion can cause obstruction (i.e. bowel twisting)
co-morbility delayed healing due to other health problems such as DM or cancer.
Complications of healing loss of funcion
What is the worst complication of healing? contractures/obstructions
Hypertrophic scar formation keloid
Common contracture scar tissue that forms where you can't bend or move extremity.
Created by: Wends1984