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Lymphatic System 3
Can you name the Lymphatic System 3?
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Tails of the Unexpected
The only type of T cells that directly attack and kill other cells are:
T cells bind to which type of cells that have found antigens in the lymph?
IL-1 and IL-2 are examples of what?
A vaccine or a dead or attenuated pathogens is an example of what type of immunity?
active, artificial, acquired
True or false: the secondary response to a re-exposed antigen is faster and more intense.
True or False: IL-2 can be released by macrophages before IL-1 is released.
IL-1 must be released in order to stimulate IL-2 production
Each antibody has a unique variable region that contains the:
Antibodies are also called:
This antibody remains in the blood even after antibody levels are no longer elevated.
Do antibodies destroy antigens?
they form an antigen-antibody complex
True or false: B cells produces antibodies.
Plasma cells do
Once a B cell is activated by a binding antigen, it produces what?
Another name for Killer T cells is:
Helper T cells must be primed by a presented antigen in order for it to start doing its job. Would there be an immune response without Helper T cells?
Activated Cytotoxic T cells that use granulysin and perforin allow the infected body cell they attack to undergo:
This antibody is the only one that can cross the placenta:
Immobilization of bacteria results in the destruction of what?
Proliferation of other T cells and B cells that have already been bound to an antigen is regulated by which immune cell?
IL-2 sets up a positive or negative feedback in order to encourage T cell division?
Along with plasma cells, B cells differentiate into:
The antibody that has the largest population in the body is:
T cells leave the lymphatic system. Do B cells?
An injection of immune serum is a type of what kind of immunity?
passive, artificial, acquired
Inactive B cells encounter 'free' antigens in lymph or ISF, bind to them and become:
Which cells proliferate during the secondary antibody response, resulting in exponential growth of the antibody titer?
IL-2 is used therapeutically to enhance the body's defense against what?
IL stands for:
This method of destruction results in the blocking effects of toxins and prevention of attachment to body cells.
Do Helper T cells attack and eliminate antigens?
they only delegate other immune cells to do their job
True or false: antibody structure is identical to the antibody receptor of their progenitor cell.
Do antibodies leave the lymphatic system?
True or false: the primary response to an antigen is instant.
It takes 7-10 days for the concentration to peak
Antibodies passing from the mother to the fetus via the placenta or breat milk to the infant is an example of what type of immunity?
passive, natural, acquired
This type of immunity has an natural and artificial type, along with passive and active subtypes.
True or false: Cytotoxic cells circulate the body in search of body cells that display antigens to which they have been sensitized.
This is the process in which antigens cross-link, causing them to clump and precipitate.
Cytotoxic T cells have two mechanisms. One mechanisms releases granzymes while the other releases perforins. The mechanisms that utilizes granzymes cause the infected cell to under
An infection or contact with a pathogen is an example of what type of immunity?
active, natural, acquired
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