NORMAL FLORA Flashcards
Two groups of resident microbiodata
consist of relatively fixed types of microorganisms regularly found in a given area at a given age; if disurbed, it promply reastablishes itself
resident microbiodata
Two groups of resident microbiodata
consists of nonpathogenic or potentially pathogenic microorganisms that inhabit the skin of mucous membranes for hours, days, or weeks
transient microbiodata
microorganisms that are constantly present on body surfaces are frequently described as __________ (one partner benefits, while the other seems unaffec6edb
commensals
in some sights like the gut, ____ both parties derive benefit may be a better description of this relationship
mutualistic
on mucous membranes and skin. the resident microbiodata may prevent colonization by pathogens and possible disease through __________
bacterial interference
___________ are the most common resident organisms of the upper respiratory tract. If large number of them are introduced into the bloodstream, they may settle on deformed or prosthetic heart valves and produce infective endocarditis
streptococcus viridans
_____ are the most common resident bacteria of the large intestine and are quite harmless in that location
bacteroides
among the factors that may be important in eliminating resident microorganisms from the skin are the
L, F, L
low pH
fatty acids in sebaceous secretions
lysozyme
keratinocytes continously sample the microbiodata colonizing the skin surface through __________
pattern recognition receptors
Flora of the nose consists of prominent
C,S, AND S
corynebacteria
staphylococci (epidermidis, aureus)
streptococci
C section babies lack harbor _________ from the vaginal community like (LPAS)
bacterial communities
lactobaccilus
prevotella
atopobium
sneathia
infants delivered via c-section harbor bacterial communities across all body habitats most similar to ________ of the mothers
skin communities
(staphilococcus, corynebacterium, propionibacterium)
__________ species are normally present in tonsillar tissue and on the gingivae and various protozoa may also be present
actinomyces
predominant species in the upper respiratory tract, particularly the pharynx are_______ and _________ and _______
non-hemolytic and alpha hemolytic streptococci
neisseria
the biofilm first forms in relation to the dental pellicle which is a surface physiologic thin organic film covering the mineralized tooth surface composed of proteins and glycoporteins derived from saliva and other oral secretions
dental pellicle
______– is a disintegration of the teeth beginning at the surface and progressing inward
caries
_______ is considered to be the dominant organism for the initiation of caries
S mutans
plaque induced periodontal disease encompasses 2 separate disease entities __________and chronic _____
gingivities
chronic periodontitis
many early studies reported that the intestinal microbiodata of breastfed children is dominated by _______
bifidobacteria
inviduals on an animal based diet have been shown to have an increased abundance of bile tolerant microorganisms (A,B,B)
Alistipes
bilophilia
bacteroides
From the hundreds of phylotypes detected in the human stomach only ________ persists in this environment
helicobacter pylori
in a normal adult colon 96-99% of resident bacterial flora consists of anaerobes. six major phyla predominate
these are: B,F,A,V,F,P
bacteroides
firmicutes
actinobacteria
verrucomicrobiota
fusobacteria
proteobacteriae
fecal microbiota transplantation is used successfully as a treatment for patients suffering from _____ infection
c. difficle
bacterial vaginois is characterized to a shift of a diseased state characterized by a presence of organisms to phylotaxa such as _______ and ______
actinobacteria
bacterioidetes
