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Histology > Lymphatic System > Flashcards

Lymphatic System Flashcards

1
Q

Consists of a large, diverse population of leukocytes located within every tissue of the body and lymphoid organs interconnected only by the blood and lymphatic circulation.

A

IMMUNE SYSTEM and LYMPHOID ORGANS

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2
Q

TYPES OF IMMUNITY

A

INNATE IMMUNITY
ADAPTIVE IMMUNITY

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3
Q

Nonspecific, involves a wide variety of effector mechanisms, and immediate response

A

INNATE IMMUNITY

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4
Q

Physical barriers such as the skin and mucous membranes of the gastrointestinal, respiratory, and urogenital tracts that prevent infections or penetration of the host body
Examples: Granulocytes and other leukocytes

A

INNATE IMMUNITY

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5
Q

ANTIMICROBIAL CHEMICALS OF LEUKOCYTES

A
  1. HYDROCHLORIC ACID AND ORGANIC ACIDS
  2. DEFENSINS
  3. LYSOZYME
  4. COMPLEMENT
  5. INTERFERONS
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6
Q

In specific regions, lower the pH locally to either kill entering microorganisms directly or inhibit their growth.

A

HYDROCHLORIC ACID AND ORGANIC ACIDS

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7
Q

Short cationic polypeptides produced by neutrophils and various epithelial cells kill bacteria by disrupting the cell walls

A

DEFENSINS

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8
Q

is an enzyme made by neutrophils and cells of epithelial barriers, which hydrolyzes bacterial cell wall components, killing those cells.

A

LYSOZYME

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9
Q

A system of proteins in blood plasma, mucus and macrophages that react with bacterial surface components to aid the removal of bacteria.

A

COMPLEMENT

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10
Q

Paracrine factors from leukocytes and virus-infected cells that signal NK cells to kill such cells and adjacent cells to resist viral infection.

A

INTERFERONS

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11
Q

Aims at specific microbial invades

A

ADAPTIVE IMMUNITY

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12
Q

Mediated by lymphocytes and antigen presenting cells (APCs)

A

ADAPTIVE IMMUNITY

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13
Q

Acquired gradually by exposure to microorganism

A

ADAPTIVE IMMUNITY

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14
Q

More specific, slower to respond

A

ADAPTIVE IMMUNITY

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15
Q

Evolutionarily more recent development than innate immunity

A

ADAPTIVE IMMUNITY

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16
Q

Response to specific microbial invaders

A

ADAPTIVE IMMUNITY

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17
Q

involve production of memory lymphocytes

A

ADAPTIVE IMMUNITY

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18
Q

Use as a communication of the cell in the immune system to coordinate defensive measures

A

CYTOKINES

19
Q

Both innate and adaptive immunity

A

CYTOKINES

20
Q

Both innate and adaptive immunity

A

CYTOKINES

21
Q

A diverse group of peptides and glycoproteins

A

CYTOKINES

22
Q

low molecular mass

A

CYTOKINES

23
Q

paracrine mode of action

A

CYTOKINES

24
Q

Directed cell movements, or chemotaxis, toward cell accumulation at sites of inflammation, for example, diapedesis.

A

CYTOKINES

25
Q

Cytokines producing this effect are also called

A

chemokines

26
Q

Increased mitotic activity

A

CYTOKINES

27
Q

Adaptive: stimulation or suppression of lymphocytes – interleukins

A

CYTOKINES

28
Q

Innate: stimulation of phagocytosis or direct cell killing

A

CYTOKINES

29
Q

Antibody percentage in the plasma:

75% - 85%

A

lgG

30
Q

Antibody percentage in the plasma:

5%-10%

A

lgM

31
Q

Antibody percentage in the plasma:

10%-15%

A

lgA

32
Q

Antibody percentage in the plasma:

0.001%

A

lgD

33
Q

Antibody percentage in the plasma:

0.002%

A

lgE

34
Q

Presence in sites other than blood, and lymphoid organs:

Fetal circulation in pregnant women

A

lgG

35
Q

Presence in sites other than blood, and lymphoid organs:

B lymphocyte surface (as a monomer)

A

lgM

36
Q

Presence in sites other than blood, and lymphoid organs:

Secretions (saliva, milk, tears, etc)

A

lgA

37
Q

Presence in sites other than blood, and lymphoid organs:

Surface of B lymphocytes

A

lgD

38
Q

Presence in sites other than blood, and lymphoid organs:

Bound to the surface of mast cells and basophils

A

lgE

39
Q

Known functions:

Activates phagocytosis, neutralizes antigens

A

lgG

40
Q

Known functions:

First antibody produced in initial immune response; activates complement

A

lgM

41
Q

Known functions:

Protects mucosae

A

lgA

42
Q

Known functions:

Antigen receptor triggering initial B cell activation

A

lgD

43
Q

Known functions:

Destroys parasitic worms and participates in allergies

A

lgE

Histology (37 decks)

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