A 2 Flashcards

1
Q

Wright stain does what?

A

-Stains immune cells so we can see the different histologies

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2
Q

What cells are derived from a common myeloid progenitor cell?

A
  • Megakaryoctye
  • RBC
  • Myeloblast (makes WBC’s)
  • Mast cell
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3
Q

What cells are derived from common lymphoid progenitor?

A
  • Natural Killers

- Lymphocytes

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4
Q

Spontaneous Erythrocyte Sedimentation Rate (in a test tube) is faster under what conditions?

A

Inflammation

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5
Q

What allowed mono-clonal antibody technology, immunotypes, and immune geno-expression by PCR?

A

-Discovery of CD’s (Cluster of differentiation) molecules (realize they are important to these technologies if a test question on technologies comes up)

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6
Q

CD 34 is present on which cells?

A

Stem cells

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7
Q

CD 45 is present on which cells?

A

Immune cells (all that we know of)

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8
Q

Defensins & lipid mediators serve what general function in the immune system?

A

-Immediate encounter with foreign material

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9
Q

CD 3 is present on which cells?

A

-T lymphocytes

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10
Q

Note: My tutors told me to be able to calculate a doubling time from a graph

A

So… go look at the graph and make sure you can do that.

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11
Q

What function do the epiglottis, GE junction, and UP junction serve in the immune system?

A

-Physical barriers

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12
Q

Where are chemical lysozyme barriers as well as Anti-Microbial Peptides generally found?

A

-Skin, tears, saliva, milk, PMN granules.

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13
Q

What is the function of lysozyme?

A

Degrade peptidoglycan in bacterial cell walls

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14
Q

What is the function of Anti-Microbial Peptides?

A

Punch holes in membranes (similar to MAC from complement)

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15
Q

Which tight junctions in the gut are leaky and which are tight?

A

-IL 17=leaky
-IL 10=tight
(Both are influenced by bacteria, and have a role in Crohns disease and UC)

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16
Q

T/F the gut microbiome can be anti-inflammatory?

A

True

17
Q

What is HSP 25? (for purpose of this class)

A

An immune system protein in the colon that is not expressed unless bacteria are present

18
Q

Epidemiology X Microbiology Divided by WHAT = Risk of infection?

A

Anatomy X Immunology

19
Q

ID 50 is what?

A

Number bacteria sufficient to infect 50% of people

20
Q

What is the critical step in initiating immune response?

A

-Recognition

21
Q

What are commensal bacteria?

A

Symbiotic bacteria such as in the gut

22
Q

What is an interferon?

A

A chemical signal released by an invaded cell that warns and prepares neighboring cells of an invader.

23
Q

Which two TLR ‘s signal for interferon (IFN) release? (For our purposes)

A

TLR 3 and TLR 7. ( why? Because these sense RNA SS and DS which are indicative of bacteria or virus)