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WSU Pathophysiology Unit 4
N/A
61
Pathology
Undergraduate 2
04/16/2012

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Cards

Term
Innate vs Adaptive immunity
Definition
Innate is natural and non-specific while Adaptive is acquired and specific.
Term
What are Purposes of Inflammation
Definition
Destroy injurious agents, Confine agents to limit their effects on the host, stimulate the immune response, Promote regeneration and repair of tissue.
Term
What are some Systemic Manifestations of Inflammation?
Definition
Fever, Increase in both pro-inflammatory and anti-inflammatory plasma proteins produced by the liver, Leukocytosis.
Term
What are two different "acute-phase reactants"?
Definition

Erythrocyte sedimentation rate (ESR)

Blood levels of C-reactive protein (CRP)

Term
What are some local and observable characteristics of inflammation?
Definition

1. Heat

2. Redness

3. Swelling

4. Pain

Term
What role does Vasodilation perform in inflammation?
Definition
It increases blood flow while decreasing blood flow velocity.
Term
What is the Complement System?
Definition
A group of plasma proteins (C1-9) that participate at all levels of inflammation.
Term
What does C3b do?
Definition
it helps by Opsonizing bacteria.
Term
What does C3a/C5a do?
Definition
It induces mast cell degranulation
Term
What does the Kinin System?
Definition
It augments inflammation by increasing vascular permeability, vasodilation and smooth muscle contraction.
Term
How is the Kinin System activated?
Definition
Throught the intrinsic pathway of coagulation.
Term
What are Mast Cells?
Definition
Large, granular cells in loose connective tissue, adjacent to blood vessels and are critical in the inflammatory response.
Term
What are the two process that Mast Cells perform?
Definition

(long-term) they synthesize cytokines and lipid-mediators.

(short-term) they degranulate and release histamine

Term
What are Leukotrienes?
Definition
They are released by Mast cells when stimulated by IgE.
Term
What lipid mediator plays an important role in pathology of Asthma?
Definition
Leukotrienes, Leukotriene inhibitors used to treat severe forms of athsma.
Term
What are Prostaglandins made by?
Definition
(COX) or cyclo-oxygenases
Term
Cox or cyclo-oxygenases are inhibited by what?
Definition
Non-steroidal anti-inflammatory drugs (NSAID); ex include Aspirin
Term
Which immunoglobulin stimulates the release of Prostaglandins?
Definition
IgE
Term
Who makes Interferons and what do they protect against?
Definition
leukocytes create them to help defend against viruses.
Term
What are Interleukins?
Definition
Cytokines produced primarily by macrophages and lymphocytes in response to inflammation.
Term
What do interleukins do?
Definition
They encourage chemotaxis (movement of cells toward inflammatory site), Proliferation and Maturation of WBCs and they can be both pro- and anti-inflammatory.
Term
What is the difference between acute and chronic inflamation?
Definition
Simply duration of time
Term
What are Granulomas?
Definition
When you have chronic inflammation your body tries to "wall off" the pathogen by encircling it with Macrophages.
Term

Tissue Repair Vs. Tissue Regeneration

 

Definition
Regeneration is the attempt to replace empty wound with functioning tissue; while tissue repair just replaces empty wound with scar tissue.
Term
What is Debridement in reference to wound healing?
Definition
The first step in which the wound is cleaned up through phagocytosis.
Term
What type of WBC is developed into plasma cells?
Definition
B lymphocytes are turned into plasma cells which can then secrete antibodies.
Term
What factors make an antigen more Immunogenic?
Definition
Being large in size, organiccomplex in structure and Foreign or recognized as non-self.
Term
What is a Hapten?
Definition
It is a molecule that is not large enough to induce an immune response by itself.
Term
What are Major Histocompatibility Complex (MHC)?
Definition
They are coded by HLA genes; they are the "flags" of a cell.
Term
What cells have MHC class I molecules?
Definition
All nucleated cells.
Term
What cells have MHC class II molecules?
Definition
Only "professional" antigen presenting cells (APCs)
Term
Which Chromosome are HLA (MHC) genes located?
Definition
Chromosome 6
Term
"This Cell is Virally Infected!"
Definition
MHC Class I molecules
Term
"This Is an Invader!"
Definition
MHC Class II molecules
Term
What is Perforin?
Definition
It is used to trigger cytolysis
Term
What are characteristics of IgM
Definition

10% of total plasma antibody,

10 heavy & 10 light chains,

Very effective activator of the complement system.

Term
What are characteristics of IgG?
Definition

75% of plasma antibody,

Monomer,

Actively transported across the Placenta,

long-term immunity.

Term
What are characteristics of IgA?
Definition

located in the plasma and body secretions,

protects from enzymatic destruction,

found in lacrimal glands, salivary glands, lymphoid tissues in breast, bronchi, intestines, and GI tract

Term
What are caracteristics of IgE?
Definition

Low plasma concentration,

Bound to eosinophils, Basophils and Mast cells,

Triggers release of histamine.

Term
What is Hypersensitivity Type I?
Definition
IgE-mediated or allergies
Term
What is Hypersensitivity Type II?
Definition
Tissue-specific; ex: Rh+and bad blood transfusions
Term
What is Hypersensitivity Type III?
Definition
Immune Complex Hypersensitivity; ex: lupus and Rheumatoid arthritis
Term
What is Hypersensitivity Type IV?
Definition
Delayed Hypersensitivity; ex: poison ivy and TB
Term
What are characteristics of Di George Syndrome?
Definition

Partial or complete lack of the thymus!,

decreased T cell function

Term
What are characteristics of Bruton's Agammaglobulinemia Syndrome?
Definition
Failure of early B cells to become mature B cells
Term
What are characteristics of Wiskott-Aldrich Syndrome?
Definition

X-linked recessive disorder,

IgM production is reduced

 

Term
What are characteristics of Selective IgA deficiency?
Definition

Can cause chronic intestinal candidiasis,

increased allergen uptake and more severe allergic response.

Term
HIV virus binds to what type of receptor?
Definition
It has a gp120 protein that binds to CD4+receptors/ aka T-helper cells.
Term
What is Pathogenicity?
Definition
Ability of pathogen to cause disease.
Term
What is Virulence?
Definition
measures the severity a disease can cause.
Term
What is Immunogenicity?
Definition
The ability of a pathogen to induce an immune response
Term
What is Infectivity?
Definition
The ability of a microorganism to invade and colonize within a host.
Term
What is the cell wall of a bacteria composed of?
Definition
Peptidoglycan
Term
Gram + bacteria produce...?
Definition
Exotoxins; ex: botulism, tetanus, staph food poisning, toxic shock syndrome.
Term
Gram - bacteria produce...?
Definition
Endotoxins; ex: salmonella food poisoning
Term
What is Sporulation?
Definition
The formation of endospores.
Term
Virus are not living therefore they are...?
Definition
Obligate intracellular parasite
Term
Diseases caused by fungi are called?
Definition
Mycoses
Term
Viral Replication depends on...?(6 Steps)
Definition
  • Absorption
  • Penetration
  • Uncoating
  • Replication
  • Assembly
  • Release of new virions
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