Home
Flashcards
Preview
Lymphatic System
Home
Get App
Take Quiz
Create
Functions
of l
ymphatic system
&
immune system
?
1. transports protein(albumin) from interstital space to the blood
2. transports fat from small intestine to the blood
3. resistance--the ability to remain unaffected by noxious agents
Define
lymphoid organ
presence of lymphocytes
List lymphoid organs & their loctions
1.
thymus
--> mediastinum, deep to sternum
2.
spleen
--> LUQ stomach & diaphragm
3.
lymph nodes
--> along lymphatics
Define
resistance
ability to remain unaffected by noxious agents
Define
nonspecific resistance
general factors(protects against any pathogen)
HAS NOTHING TO DO WITH IMMUNITY
Define
specific resistance
Immunity---> destruction of specific target
The
factors
that contibute to
Nonspecific Resistance
1. Physical Barriers
2. Mechanical factors
3. Chemical factors
4. Inflammation
Define
interferon
protein produced by virus infected cells (protects uninfected cells)
Define
inflammation
tissue reaction to injury
What is the
purpose
of
inflammation
?
it destroys, dilutes and contains injurious agent and paves way for repair
Define
Antigen
molecule that causes immune response
Define
Antibody
produced in response to antigen
List
immune system cells
& their functions
Macrophage
--> phagocytizes, processes and presents Antigen on it's surface
B lymphoctye
---plasma cell --> antibody
---memory cell
T lymphoctye
--cytotoxic T cells--. kills virus infected cells
-- suppressor (turn off)
--helper (amplify immune response)
---memory
Two types of
cell interactions
involved in
immune response regulation
1.
Indirect
(no cell contact)
2.
Direct
What mediates(carries out)
humoral immunity
?
IgM, IgG & IgA
What mediates (carries out)
cell mediated immunity
?
cytotoxic T Cells
Define
immunoglobulin
antiodies
Characterize IgM, IgG & IgA
IgM
: 1st in blood
IgG
: 2nd in blood
IgA
: secretions
Primary & Secondary responses regarding onset, duration, and intensity
Primary
is
first
Secondary
is
faster onset
,
more intese
, and
longer
The secondary response in the result of what immune system characteristic?
memory
Naturally acquired
immunity
due to natural event
Natural passive
immunity
subject immune system doesn't participate
example: transfer maternal antibodies via breast milk or placenta to child
Natural active
immunity
Subject's immune system responds to normal anitgen exposure
example: cold virus immunity due to past exposure
Artificially acquired
immunity
due to medicine
Artificially passive
immunity
administration of pre-formed antibodies
example: after Hepititus A virus exposure @ Taco Bell
Artificially active
immunity
subject immune system responds to administration of antigen
example: vaccines
Author
muzacgrl
ID
114639
Card Set
Lymphatic System
Description
Lymphatic System and Resistance
Updated
2011-11-05T17:55:30Z
Home
Flashcards
Preview