LAB Exercise 1b Flashcards
Factors Determining Variation in Inflammatory Response
Factors determining variation in inflammatory response involving the organism
- Type of injury and infection
- Virulence
- Dose
- Portal of entry
- Product of organisms
Factors determining variation in inflammatory response involving the host
Systemic diseases • Immune status of host • Congenital neutrophil defects • Leukopenia • Site or type of tissue involved • Local host factors
5 types of exudation
- serous
- fibrinous
- purulent or suppurative
- hemorrhagic
- catarrhal
Considered as the mildest form of inflammation characterized by the outpouring of a thin fluid
serous inflammation
Accumulation of fluid in the peritoneal, pleural, and pericardial cavity
effusion
exudation when the fibrin content of the fluid exudate is high.
fibrinous inflammation
A fibrinous exudate is characteristic of inflammation
in the lining of body cavities
develops when the vascular leaks are large or there is a local procoagulant stimulus
Fibrinous Inflammation
develops when the vascular leaks are large or there is a local procoagulant stimulus
Fibrinous Inflammation
Exudation from the formation of creamy pus as seen in infection with pyogenic bacteria such as streptocicci or staphylococci
Suppurative or Purulent Inflammation
It is viscous yellow fluid composed of dead and dying PMNs and necrotic tissue debris. It is also rich in lytic enzymes released from leukocytes, destroyed cells, and bacteria
pus
Purulent exudate that is also rich in fibrin is said to be
purulent
localized collection of pus within an organ or tissue is called
abscess
In chronic abcsesses, the wall of an abscess is composed of a capsule consisting of
fibrotic granulation tissue
In chronic abcsesses, the wall of an abscess is composed of a capsule consisting of
fibrotic granulation tissue
A cavity, usually occupied previously by an abscess, that drains through a tract to the surface of the body when the abscess ruptures
sinus
A channel between two preexisting cavities or hollow organs that is formed when large abcesses ruptures.
fistula
Accumulation of pus in a preformed cavity
ampyema
Accumulation of pus in a preformed cavity
empyema
Inflammation that is a local defect, or excavation, of the surface of an organ or tissue that is produced by the shedding of inflamed necrotic tissue
ulcerative inflammation
Occur only when tissue necrosis and resultant inflammation exist on or near a surface
ulcerative inflammation
Morphology of cute ulcer
intense polymorphonuclear infiltration and vascular dilation in the margins of the defect.
chronic ulcer morphology
fibroblastic proliferation
scarring
accumulation of lymphocytes, macrophages, and plasma cells.
Imflmmtion where the exudate of fibrin, pus, cellular debris, and mucus forms a pseudomembrane on the surface of the ulcers.
Pseudomembranous Inflammation
