Practice Quiz 10 Flashcards
an example of a nonspecific chemical barrier to infection would be
lysozyme in saliva
in humans, B cells mature in the ___, and T cells mature in the ___.
bone marrow, thymus
natural active immunity
immunity that develops after natural exposure to a pathogen
natural passive immunity
passage of antibodies from a mother to her child
artificial passive immunity
transfer of antibodies produced by a donor
artificial active immunity
activation of adaptive immunity through the deliberate exposure of an individual to a weakened or inactivated pathogen or key antigens
superantigens are produced by antigen presenting cells
false
the nonspecific immune system recognizes ___ which are molecular structures found on many groups of pathogenic microbes
pathogen-associated molecular patterns
the physical defenses of non-specific immunity include which of the following
- mechanical defenses such as shedding of skin cells
- cellular barriers such as skin, mucous membranes, and endothelial cells
- the microbiome such as the resident bacteria of the skin
the primary B-cell receptor is
IgD
which of the following cells primarily functions in protection against protozoa and helminths
eosinophils
which type of cell secretes large quantities of antibodies
plasma cells
___ T cells assist in humoral and cellular immunity and activate macrophages and NK cells
helper
___ are chemicals that alter the temperature regulating part of the hypothalamus
pyrogens
____ molecules are expressed on the surface of healthy cells, identifying them as normal and “self”
major histocompatibility complex; MHC
