Chapter 24A Flashcards

(48 cards)

1
Q

2) What are the four basic categories of pathogens and foreign molecules?

A

2) parasites, bacteria, virus, allergens

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2
Q

3) What 3 kingdoms are considered to be parasites if living inside a person?

A

3)parasite, fungi,and animal

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3
Q

4) What two types of microscopic pathogens are not usually considered as parasites?

A

4)bacteria , virus

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4
Q

6) What is an example of an abnormal cell that the immune system might destroy?

A

6)cancerous

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5
Q

7) The failure to distinguish self from nonself is what type of immune system pathology?

A

7)incorrect response

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6
Q

8) Lupus, Type 1 diabetes and rheumatoid arthritis are all examples of what?

A

8)autoimmune disorder

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7
Q

9) When an immune response is our of proportion to the threat posed by the invader, this is called;

A

9) overactive response

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8
Q

10) What are two examples of overactive immune responses?

A

10)hay fever, anaphylaxis

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9
Q

11) The failure of the immune system to work properly is considered a lack of response pathology; True (A) or False (B)

A

11)T

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10
Q

12) What are two examples of immunodeficiency diseases?

A

12)bubble boy syndrome , AIDS

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11
Q

13) How is the structure of a bacterium different from that of a virus?

A

13)bacterium- is composed of cells / virus- are not composed of cells

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12
Q

14) Most bacteria can live outside of a host cell without dying; True (A) or False (B)

A

14)F

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13
Q

15) What is the name of the protective layer around some bacteria that helps them avoid the immune system?

A

15)capsule

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14
Q

16) Most bacteria can be killed by antibiotics; True (A) or False (B)

A

16)T

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15
Q

17) what is the name of the protein coat that surrounds most viral nucleic acids?

A

17)capsid

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16
Q

18) Most viruses can live outside of a host cell and maintain all normal processes; True (A) or False (B)

A

18)F

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17
Q

19) Interferon is an example of what type of drug?

A

19)antiviral

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18
Q

20) Most viruses are susceptible to antibiotics;True (A) or False (B)

A

20)F

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19
Q

21) The skin and epithelial linings of the respiratory and digestive systems form what type of barrier to pathogens?

A

21)physical barrier

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20
Q

22) What are three types of chemical defenses against invaders? Where would each be found?

A

22)acid,mucus , lymposomes, stomach, in saliva and tears

21
Q

23) What are the three steps in most immune defense responses?

A

23)T cell, immune cells ,phagocytic cell

22
Q

24) What is the main difference between innate and acquired immune defenses?

A

24) Innate - is nonspecific immediate response

Acquired immune response- attacks a specific pathogen

23
Q

25) Where are immune cells formed and matured?

A

25)bone marrow / thymus

24
Q

26) What is the main function of lymph nodes?

A

26)filter lymphatic fluid and destroy pathogens

25
27) What organ contains immune cells that monitor pathogens in blood as well as recycling worn out RBCs?
27)Spleen
26
28) What immune cell category contains cells the are the key to acquired immune response?
28)lymphocytes
27
29) What two types of cells release histamines and heparin?
29)basophsilis and Mast
28
30) What is heparin used for in the body (in the absence of doctors, etc.)?
30)anticoagulan/prevent blood clot
29
31) What cells mature into macrophages?
31)monocytes
30
32) What is the main duty of a mature macrophage?
32)patrol tissues and phagocytize old RBC
31
33) What is the most abundant WBC type?
33)neutrophils
32
34) What is the name of the cell type that releases pyrogens?
34)neutrophilis
33
35) What cell type fights antibody-marked parasites and contributes to allergic reactions?
35)eosinophils
34
37) NK cells are;
37)phagocytosis / natural born killers
35
38) What are three benefits of inflammation?
38)reduce bacterial mortality promotes tissue healing , attracts immune cells
36
40) What effect do histamines have on blood vessels?
40)causes vasodilation
37
41) How is the effect of histamines both a problem and a solution to a problem?
41. Problem: pain discomfort | Solution: more blood and white blood cells
38
42) What class of chemicals induce fever, increase the size of gaps in blood vessels, and attract WBCs to the site of an infection?
42)interleukins
39
43) How can the effects of bradykinins be seen as beneficial?
43)Pain so you know something is wrong.
40
44) What type of lymphocytes, when activated, become plasma cells?
44)B- lymphocytes
41
45) What do activated plasma cells produce that is so important to the immune system?
45) antibodies
42
46) What function do T lymphocytes have in immunity?
46) regulate the activity of other immune cells
43
47) What do NK cells do?
47)recognize and destroy virus infected or tumor cell
44
48) What type of immunity is gained when the body is exposed to a pathogen (naturally or through immunization) and the body creates its own antibodies?
48)active immunity
45
49) What type of immunity is illustrated by the passing of antibodies from mother to fetus?
49)Passive immunity
46
50) What is the division of cells exposed to an antigen to produce a large number of identical cells, each with the ability to recognize the same invader?
50)Clonal expansion
47
53) What is the main job of the memory cells in the immune system?
53)remembers the first exposure
48
54) How is the response of the immune system different after a second exposure to a pathogen than it was the first time?
54)Cause the clones to divided more rapidly for a quicker immune response.