wards off infection by forming a wall barrier around the injured area and prevents infection spreading
Systemic signs and symptoms
malaise( weak) and fatigue (tired) fever, and myalga ( muscle pain)
What helps heal
antibiotics ( can result in 2nd infection)
Types of healing
resolution- damage cells suffer but don't die
Delayed healing results from
infection
Causes of cellular injury
hypoxia loss of o2 supply so cell dies/ becomes fibrotic scar tissue ( MI cells can't regenerate so heart stops to pump) ( Brain cells modify function and control impulse- no regeneration so brain stops)( skin- cells can regenerate)
Inflammatory response
vasomotor response ( vasoconstriction limits further bleeding and extent of injury)(vasodilation increases blood flow to help heal<hyperremia- area will get red> in diabetes there is decreased blood flow hard to heal wounds
3 levels of repair
healing by first intention- clean surgical ends of wound are together- starts from top- edges come together- no scar formation
