the healing process Flashcards
What are the three phases of healing?>
Inflammation, Proliferation and remodeling
How long is the imflammation phase?
5 days
How long is the proliferation phase?
up to 21 days
How long is the remodeling phase?
up to one year
What are the five signs of inflammation?
Redness, temperature, swelling. loss of function and pain
What stimulates the clotting mechanism and stops bleeding?
PLatlets releaseing phospolipids
What marks the start of the proliferation phase?
angiogenesis
What are the primary factors in growth?
fibroblasts
What forms the extracellular matrix?
collagen, proteoglycans, and elastin(which form scar tissue)
What does Collagenase prevent?
the over production of collagen
Which type of collagen is thin and lacks tensile strength?
Type III
What phase of healing is it if less than 50% of collagen is type I collagen?
proliferation
T or F: FGFs (fibroblasts) are primarily responsible for the formation of new vascular and granulation tissue
True
What do FGF’s stimulate?
chondrocytes, keratinocytes, and myoblasts
What is the definition of tensile strength?
the maximum amount of stress or force that a structure can withstand before failure
