Specific Defenses Part 1 Flashcards

1
Q

Specific immunity (5)

A

Specificity
Foreign
Memory
Antigen
Specific acquired immunity

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2
Q

Specificity

A

Recognize a specific foreign substance
“Non-self” or foreign
“Self” ie your own body’s cells

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3
Q

Foreign

A

Bacteria, viruses, pollen, transplanted tissues

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4
Q

Memory

A

If you recover from a specific infection, you are immune to it when exposed again

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5
Q

Antigen (Ag)

A

Substance that stimulates an immune response

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6
Q

specific acquired immunity

A

Is MEDIATED by LYMPHOCYTES
T cells
B cells

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7
Q

T cells are responsible for

A

Thymus development and cellular immunity

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8
Q

B cells are responsible for

A

Bone marrow development and humoral immunity

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9
Q

B cells originate in the

A

Bone marrow

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10
Q

B cells produce

A

Antibody molecules that recognize and bind to Ag

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11
Q

T cells originate in the

A

Bone marrow

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12
Q

B cells mature in the

A

Bone marrow

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13
Q

T cells mature in the

A

Thymus

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14
Q

T cells have what that recognizes Ag on the surface of a target cell.

A

Cell surface receptors (TCR)

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15
Q

Acquired immunity is protection that developed over

A

A lifetime against a specific Ag either after infection or vaccination

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16
Q

Acquired immunity can occur NATURALLY or _____

A

Artificially

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17
Q

Acquired immunity can occur ACTIVELY or ______

A

Passively

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18
Q

Naturally acquired active immunity

A

Person acquires immunity naturally when encounters the pathogen

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19
Q

naturally acquired passive immunity

A

Natural transfer of preformed Ab from mother to fetus or infant

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20
Q

Artificially acquired active immunity

A

Immunity acquired after vaccination against a specific infectious agent

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21
Q

Artificially acquired passive immunity

A

Immunity acquired after injection of preformed Ab

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22
Q

Active immunity happens when your own system has been activated. (T/F)

23
Q

Is active immunity long lasting?

24
Q

Passive immunity happens when antibodies (made somewhere else) are given to you. (T/F)

25
passive immunity is short lasting (T/F)
T
26
2 immune systems of specific acquired immunity
Humoral and cell mediated
27
Effective against intracellular viruses, fungi, Protozoa, transplants, and cancer cells.
Cell mediated immune system
28
Effective against extracelluar viruses, bacterial toxins and circulating viruses from floating blood and fluids.
Humoral immune system
29
Humoral immune system is mediated by
Antibodies
30
Cell mediated immune system is mediated by
Direct cell-cell interactions
31
B lymphocytes are used in the ___ immune system
Humoral
32
T lymphocytes are used in the ___ immune system
Cell mediated
33
Do antibodies go into the cell?
NO, they cannot enter the cell
34
Polypeptides are made of
Amino acids (several or more joined together)
35
How many polypeptides comes together to made an antibody molecule?
2
36
What are the chains called in an antibody molecule?
Heavy chains (2) Light chains (2)
37
How many antigen binding sites are in a single antibody molecule
2 The top of the Y
38
The shape of an antibody molecule
Y
39
How many antigens can an antibody bind to inself?
2
40
How many classes of antibodies can we recognize
5
41
What are the classes of antibodies
IgG IgM IgA IgD IgE (Ig = immunoglobulin)
42
IgG is the only antibody that can
Cross the placenta
43
A protein that coats a microbe to enchace pahgo
Opsonin
44
What class of antibody is an opsonin
IgG
45
The main antibody we produce in a secondary immune response.
IgG
46
The ONLY case where you DO NOT want antibodies for the pathogen.
HIV
47
If you have a lot of IgG you are protected against the pathogen, EXCEPT for…
HIV
48
IgM has how many binding sites?
10
49
First antibody during a primary immune response
IgM
50
the main antibody in secretions
IgA
51
IgD’s function
Unkown
52
IgE is important in defense against
Parasitic worms
53
the main antibody produced if you allergic to something
IgE