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high concentrations in mucous membranes ( lining respiratory passages and gastrointestinal tract, saliva, tears).
fluid is kept from accumlating in tissue space by
lymphatic vessels transport excess fluid away from the interst. spaces in most tissues & return it to the bloodstream.
after lymph leaves the collecting ducts it enters the _____ and becomes part of the ______.
venous system & plasma
cells in a lymph node that engulf and destroy damaged cells, foreign substances and cellular debris are...
henry has a cut on high thigh that becomes infected. the lympth nodes in his ______ enlarge.
T lymphocytes mature in the thymus in response to.....
epithelial cells in the thymus secrete protein hormones called thymosins, which stimulate the maturation of t-cells.
interferon is a group of hormonelike peptides that cells produce in response to...
low-grade fever is an effective defense for short periods of time because it...
has phagocyte cells that attack harder when the temp rises. Therefor a quick low-grade fever will be more affective then a long term.
an immune system response that is slower but more specific for the pathogen is the...
Adaptive (specific) Defense
a transplant recipients body rejects a transplanted organ because her ______ does not match that of the donor closely enough.
tissues & antigens
in HIV infection, reverse transcriptase
Catalyzes the construction of a DNA strand. The initial viral DNA strand replicates to dorm a double helix and then enters the cells nucleus and insets into a chromosome.
lymph nodes are centers for the production of _______, which act against foreign particles carried in lymph.
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