module 11 pt1 Flashcards
what is a microbiome
habitat or environment with a microbial community
microbiota (what is not microbiota)
all living members of the microbiome (phages, DNA, viruses, plasmids are not living so they are not a part of it)
what is the bacterial genera in skin
propionibacterium
what is the bacterial genera in saliva
streptococcus
what is the bacterial genera in the urigenital tract
lactobacillus
what is the bacterial genera in the gastrointestinal tract
bacteroidetes
whats the major phyla resent on moist skin
corynebacteria
what is the major phyla on dry skin
betaproteobacteria
what can cause ulcers
helicobacteria
whats common in the mucus layer of the stomach
firmicutes and proteobacteria
whats common in gastric fluid
firmicutes
bacteroidetes
actinobacteria
what bacteria is acid resistant
helicobacter pylori
what 3 phyla’s do 98% of gut phylotypes fall into
firmicutes
bacteriodetes
proteobacteria
what does not develope properly in the absence of microbial stimulation
the immune system
what defines a happy and healthy gut
enhanced digestion
good immunity
good mental health
regulated metabolism
where do microbes thrive in the respiratory tract
upper respiratory tract
what has no normal microbiota in healthy adults
the lower respiratory tract
what size of particles reach the lungs
10 millimeter in diameter or less
what consists of the lower respiratory tract (anatomy)
trachea
bronchi
lungs
what phyla are in the nasal cavity (3)
staphylococcus
corynebacterium
streptococcus
where does neisseria sit in the respiratory tract
oropharynx
what lads to biofilm formation
S mutant that produce a gluten matrix
what are S mutans tolerant to ? whats the long term impact
acid tolerant and acid producing - long term effect is the breakdown of enamel because of acid
what does the biofilm, dental plaque, have in it
streptococcus
what can streptococcus do to a tooth
since it is a lactic acid bacteria, it produces acid and eventually breaks down enamel
what is periodontal disease though to influence
cardiovascular disease and arthritis
what can cause potential pathogens in the urethra
changes in pH
what are potential pathogens in the urethra
escherichia coli
proteus mirabilis
what helps keep vagina at a pH that kills lots of bacteria
lactobacillaceae (firmicutes)
what produces lactic acid by fermenting glycogen in the vagina
lactobacillus crispatus
the vagina of an adult female Is __________ acidic and contains significant amount of __________
weakly
glycogen
what is G vaginalis a cause of
bacterial vaginosis
does pH go up or down during infection
up (less acidic)
what is said about the male genital tract
it is usually a low bacterial abundance with relatively diverse bacterial communities
