Term
t/f
a virus is approx 50 times smaller than a bacteria |
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Definition
| true it is 50 times smaller |
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Term
t/f
a virus is approx 1000 times smaller than a bacteria |
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Definition
| false its 50 times smaller approx. |
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Term
t/f
a helminth is approx 1000000 times bigger than a virus |
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Definition
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Term
t/f
a helminth is approx 1000 times bigger than a virus |
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Definition
| false its 1000000 bigger! |
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Term
t/f
some protozoans and helminths are approx the same size |
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Definition
| true they be the same size-ish |
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Term
| a relationship in which both partners benefit from the association |
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Definition
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Term
| parasitology is the study of? |
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Definition
| parasitic protozoa and helminths |
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Term
t/f
t cells are part of the aquired immune response |
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Definition
| true - they are produced in bone marrow and mature in the thymus |
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Term
t/f
skin is part of the innate immune system |
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Definition
| true it acts as a physical barrier |
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Term
t/f
phagocytes are part of the innate immune system |
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Definition
| true - they are also important in recruiting the aquired immune system |
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Term
t/f
b cells are part of the innate immune system? |
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Definition
| false - they are part of the aquired immune system |
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Term
t/f
inflammation is part of the aquired system |
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Definition
| false - it is part of the innate immune system |
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Term
t/f
t cells become activated and mature in the thymus |
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Definition
| false they mature in the thymus but are not activated until they encounter antigens |
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Term
t/f concerning inflammation
there is an increased blood supply at the site of inflammation |
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Definition
| true - neutrophils and other stuff travel in the blood |
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Term
t/f concerning inflammation
macrophages release cytokines |
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Definition
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Term
t/f concerning inflammation
damaged endothelial cells release cytokines which help to recruit clotting proteins |
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Definition
| false - they release IL-8 this helps neutrophils migrate through the capillary wall. |
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Term
t/f concerning inflammation
mast cells at site of injury release histamine which causes vasodilation |
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Definition
| true - this makes the capillary leaky allowing clotting factors and compliment proteins to leak out into tissue fluid to site of inflammation |
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Term
t/f concerning inflammation
neutrophils move out of the blood to the site of infection in the tissue |
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Definition
| true release of IL-8 from damadged endothelial cells helps them migrate through the capillary wall |
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Term
| which immunty has memory associated with it? |
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Definition
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Term
| which immune system results in the production of antibodies? |
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Definition
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Term
true/ false
helper T cells have CD4 on their surface and binds to MHC II on the surface of an antigen presenting cell |
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Definition
| this is true T helper has CD4 |
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Term
| B cells multiply into clones of plasma cells and memory cells. which ones produce antibodies? |
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Definition
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