Flashcards in Chapter 13: Specific Immunity and Immunization Deck (33)
the ability of the body to react with countless foreign substances
Antigens and Immunogens
molecules that stimulate a response by B and T lymphocytes
2 examples of antigens
(1) protein or polysaccharide molecules on or inside cells and viruses; (2) foreign molecules;
Will antibodies produced against one virus work against a different virus?
True or False: All lymphocytes arise from the same basic
stem cell type.
B cells mature where?
T cells mature where?
The thymus (located in front of the heart and behind the sternum.)
True or False: A few leukocytes are produced and derived from a multipotent cell in the bone marrow known as a hematopoietic stem cell.
False: ALL leukocytes are derived from hematopoietic stem cells.
Leucocytes' average life span
Name the five leukocytes
Monocyte, Eosinophil, Basophil, Lymphocytes, & Neutrophils
the cells that create any blood cell that is not a leukocyte
the cells that create WBC's (natural killer cells, B and T lymph cells, and plasma cells)
ingest pathogens and present to T lymphocytes
large glycoprotein molecules that serve as the antigen receptors of B cells
the portion of an antigenic molecule to which a lymphocyte responds & primary signal to the immune system that the molecule is foreign
small foreign molecules that are too small by themselves to elicit an immune (drugs); They just "hapten" to slip by
blood cell markers
DNA complexed to proteins; not pure DNA
certain bacterial capsules
outer membrane of Gram-negative bacteria
any immunity that is acquired through the normal biological experiences of an individual (get sick, get immunity)
protection from infection obtained through medical procedures such as vaccines and immune serum
occurs when an individual receives immune stimulus that activates B and T cells to produce immune substances
such as antibodies (vaccines)
occurs when an individual receives
antibodies from another human or animal, short-term effectiveness (through breast milk or immune serum)
Whole cell or virus vaccines
live, attenuated; or killed cells or inactivated viruses
vaccine created by reducing the virulence of a pathogen, but still keeping it viable cells or viruses
subunits derived from cultures of cells or viruses; subunits synthesized to mimic natural molecules; manufactured via genetic engineering
subunits conjugated with proteins to make them more immunogenic; used for young immune systems that have a hard time recognizing foreign microbes