Term
| Functions of the Lymphatic System |
|
Definition
Three Main
-returns fluid to the bloodstream
-absorbs fat molecules from digestive tract
-helps defend body against disease |
|
|
Term
|
Definition
Site of stem cells that produce blood cells, red & white
Lymphocytes differentiate into B & T lymphocytes |
|
|
Term
|
Definition
Small structures occuring along lymphatic vessels
Contain:
B lymphocytes
T lymphocytes
Macrophages |
|
|
Term
|
Definition
Consists of:
dead tissue
dead bacteria
living white cells
dead neutrophils |
|
|
Term
|
Definition
Cancer of lymphatic tissue |
|
|
Term
|
Definition
Antibacterial enzyme in perspiration, saliva, & tears |
|
|
Term
|
Definition
Barriers to entry
Inflammatory reaction
Phagocytic WBC
Natural killer cells
Protective Proteins |
|
|
Term
|
Definition
Body has built-in barriers
Physical-skin & mucous membrane
Chemical- sebum, lysozyme, urine, ph in tummy, bacteria |
|
|
Term
|
Definition
B lymphocytes
-mature in bone marrow
-give rise to plasma cells that produce antibodies
-responsible for antibody-mediated immunity
-have antigen receptors |
|
|
Term
|
Definition
T lymphocytes
-mature in the thymus gland
-attack nonself protein cells
-regulate immune response
-responsible for cell-mediated immunity
-have antigen receptors |
|
|
Term
|
Definition
Protein Molecule
Function:
-neutralization
-form immune complexes
-can bind to antigens, bacteria or foreign substances |
|
|
Term
|
Definition
Substance that contains antigens to which the immune system responds |
|
|
Term
|
Definition
2nd exposure to antigens from vaccine
"boosts" antibody titer to a high level |
|
|
Term
|
Definition
Due to antibodies being produced for substances that ordinarily would do no harm to the body |
|
|
Term
|
Definition
Often develops naturally
-result of exposure to antigens
-immunization
-depends on memory cells
-usually long-lasting |
|
|
Term
|
Definition
Involves the use of vaccines
-after 1st exposure primary response occurs
-then given booster |
|
|
Term
|
Definition
Occurs when individual given prepared antibodies
-antibodies are NOT made by the recipient, taken from recovered donors
-short lived
-can be given in breast milk |
|
|
Term
|
Definition
Antibodies act against the individuals own tissue
-cause unknown
-no cures
EX. multiple sclerosis
rheumatoid arthritis |
|
|
Term
|
Definition
Immune system unable to protect the body from disease
-caused by:
virus
inherited
congenital
-common infections can be fatal |
|
|
