Packet 4 - immunity & inflammation (2) Flashcards
Acquired through vaccination, or having disease. Long-lasting, but requires a few days to weeks to develop after first exposure.
a. ) active immunity
b. ) passive immunity
a.) active immunity
Both active immunity & passive immunity are types of adaptive immunity
Distinguishing Self from Nonself
Self-tolerance (the absence of an immune response directed against a person’s own antigens) is normally maintained through ________, ________, and ________.
1.) Suppressor T cells
2.) Bone marrow & thymus (screen for self-reactive cells)
3.) MHC (Major Histocompatibility Complex) Molecules
Self-tolerance (the absence of an immune response directed against a person’s own antigens) is normally maintained through suppressor T cells, bone marrow and the thymus, and MHC molecules.
Acquired by receiving antibodies or immune cells from another source. Short-term protection only.
a. ) active immunity
b. ) passive immunity
b.) passive immunity
Both active immunity & passive immunity are types of adaptive immunity
MHC molecules are located on the cell surface. The role of MHC molecules is to display antigens for inspection by T cells.
_____ present/display antigens of extracellular origins.
a. ) Class I MHC Molecules
b. ) CLass II MHC Molecules
b.) CLass II MHC Molecules
Found mainly on macrophages/APCs (which obtain foreign antigens by phagocytosis).
Present antigens from extracellular sources.
Interact with helper T cells (helper T cells can only recognize a foreign antigen if it is complexed to Class II MHC molecule.
MHC molecules are located on the cell surface. The role of MHC molecules is to display antigens for inspection by T cells.
_____ interact with cytotoxic T cells (cytotoxic T cells can only recognize a foreign antigen if it is complexed with this molecule).
a. ) Class I MHC Molecules
b. ) CLass II MHC Molecules
a.) Class I MHC Molecules
Found on cell membranes of nearly all nucleated cells in the body (mostly on cells that are not capable of phagocytosis).
Types of antigens displayed/presented are of intracellular origin.
Interact with cytotoxic T cells (cytotoxic T cells can only recognize a foreign antigen if it is complexed to Class I MHC molecule.
MHC molecules are located on the cell surface. The role of MHC molecules is to display antigens for inspection by T cells.
______ are found mainly on macrophages/APCs (which obtain foreign antigens by phagocytosis).
a. ) Class I MHC Molecules
b. ) CLass II MHC Molecules
b.) CLass II MHC Molecules
Found mainly on macrophages/APCs (which obtain foreign antigens by phagocytosis).
Present antigens from extracellular sources.
Interact with helper T cells (helper T cells can only recognize a foreign antigen if it is complexed to Class II MHC molecule.
MHC molecules are located on the cell surface. The role of MHC molecules is to display antigens for inspection by T cells.
_____ present/display antigens of intracellular origins.
a. ) Class I MHC Molecules
b. ) CLass II MHC Molecules
a.) Class I MHC Molecules
Found on cell membranes of nearly all nucleated cells in the body (mostly on cells that are not capable of phagocytosis).
Types of antigens displayed/presented are of intracellular origin.
Interact with cytotoxic T cells (cytotoxic T cells can only recognize a foreign antigen if it is complexed to Class I MHC molecule.
MHC molecules are located on the cell surface. The role of MHC molecules is to display antigens for inspection by T cells.
_____ are found on the cell membranes of nearly all nucleated cells in the body (mostly on cells that are not capable of phagocytosis).
a. ) Class I MHC Molecules
b. ) CLass II MHC Molecules
a.) Class I MHC Molecules
Found on cell membranes of nearly all nucleated cells in the body (mostly on cells that are not capable of phagocytosis).
Types of antigens displayed/presented are of intracellular origin.
Interact with cytotoxic T cells (cytotoxic T cells can only recognize a foreign antigen if it is complexed to Class I MHC molecule.
MHC molecules are located on the cell surface. The role of MHC molecules is to display antigens for inspection by T cells.
Interact with helper T cells (helper T cells can only recognize a foreign antigen if it is complexed with this molecule).
a. ) Class I MHC Molecules
b. ) CLass II MHC Molecules
b.) CLass II MHC Molecules
Found mainly on macrophages/APCs (which obtain foreign antigens by phagocytosis).
Present antigens from extracellular sources.
Interact with helper T cells (helper T cells can only recognize a foreign antigen if it is complexed to Class II MHC molecule.
