plasma cells. produce antibodies
The look multi–lobed, in contrast to mononuclear leukocytes
Infiltration with mononuclear (ie, those other than neutrophils) cells; tissue destruction; healing by fibrosis and small vessel proliferation (angiogenesis)
Local excavation on tissue or organ surface caused by sloughing of necrotic tissue. Occurs especially in mucosa of mouth, stomach, intestines
pus–producing
– In severe injuries resulting in great vascular permeability, larger molecules such as fibrinogen pass the vascular barrier, and fibrin is formed and deposited in the extracellular space. – A fibrinous exudate develops when the vascular leaks are large enough or there is a procoagulant stimulus in the interstitium (e.g., cancer cells). – A fibrinous exudate is characteristic of inflammation in the lining of body cavities, such as the meninges (fibrinous meningitis), pericardium (fibrinous pericarditis), and pleura (fibrinous pleuritis).
Chronic inflammation
exuberant amounts of soft, edematous, granulation tissue developing during healing of large surface wounds.
Granulation tissue is the perfused, fibrous connective tissue that replaces a fibrin clot in healing wounds.
Scarring. Excessive fibrin deposition organized into fibrous tissue via granulation tissue.
increases vascular permeability, vasoconstriction, vasodilation. It's a chemotactic signal for platelet aggregation
Causes vascular smooth muscle relaxation and vasodilation, increasing permeability