microbial infection and partogenis Flashcards
adherence
the enhanced ability of a
microorganism to attach to a cell or
surface
adhesins
glycoproteins or lipoproteins
covalently bound to the outer layer of the
pathogen that function in attachment to
host tissues
attenuation
a decrease or loss of virulence
bactermia
the presence of bacteria in the
blood
capsule
a dense, well-defined polysaccharide
or protein layer closely surrounding a cell
colonization
the growth of a microorganism
after it has gained access to host tissues
dental plaque
a bacterial biofilm consisting
of a matrix of extracellular polymers and
salivary products, found on the teeth
disease
an injury to a host organism, caused
by a pathogen or other factor, that affects
host function
endotoxin
he lipopolysaccharide portion
of the cell envelope of most gram-negative
Bacteria, which is a toxin when solubilized
enterotoxin
a protein released
extracellularly by a microorganism as it
grows that produces immediate damage to
the small intestine of the host
infection
an event during which a
microorganism not a member of the local
microbiota is established and grows in a host,
regardless of whether the host is harmed
invasion
the ability of a pathogen to enter
into host cells or tissues, spread, and cause
disease
mucous membrane
layer of mucus-covered
epithelial cells that interacts with the
external environment
mucus
a liquid secretion that contains
water-soluble glycoproteins and proteins
that retain moisture and aid in resistance to
microbial invasion on mucosal surfaces
opportunistic pathogen
an organism
that causes disease only in the absence of
normal host resistance
patogenicity
the ability of a pathogen to
cause disease
septicemia
a a bloodborne systemic infection
toxicity
he ability of an organism to cause
disease by means of a preformed toxin that
inhibits host cell function or kills host cells
virulence
the relative ability of a pathogen
to cause disease
virulence factors
substances or strategies
of a pathogen that indirectly or directly
enhance invasiveness and host damage by
facilitating and promoting infection
exotoxin
a protein released extracellularly by
a microorganism as it grows that produces
immediate host cell damage