Inflammatory Response (4th LE) Flashcards
The irritant sets into motion a process that limits the extent of the injury
Inflammatory Response
Blood accumulation
Redness
Heat of the blood
Warmth
Fluid accumulation
Swelling
Injury to local nerve
Pain
Nonspecific reaction to harmful stimuli (toxins and pathogens)
Mediated by cytokines
Can be local or systemic
Inflammation
Lead to inflammtion in a small part of the body, followed by healing
Local infection
Leads to inflammation and disease throughout the body
Systemic infection
Elevated body temperature
Triggered by cytokines especially pyrogens
Fever
Elevated body temperature
From 37C to 38-40C
Life threatening body temperature
> 40C
Released by macrophages and by toxins from pathogens
Pyrogens
Cytokines signal hypothalamus to produce
Prostaglandins
Chemical that elevate body temperature and causes fever
Prostaglandins
Inhibits growth of most pathogens
Fever
Incontrolled systemic inflammation that is life-threatening
Septic shock
Activator/signaling molecules that enhances immune response by recruiting imune cells to sites of infection
Cytokines
Subclass of cytokines Recruits immune cells to sites of injury/infection
Chemokines
Not stored inside cells
Quickly synthesized and secreted in response to infection
Interleukin
A small cytokine
Helps healthy cells ward off viral infection
Interferon
How phagocytes recognize pathogens?
PAMPs
PRRs
PAMPs
Pathogen-associated molecular patterns