Save
Busy. Please wait.
Log in with Clever
or

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever
or

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Bacteria - Micro3

Vector/Mode of Attack

QuestionAnswer
N. meningitidis Nasopharynx --> phagocytosis across mucosa
L. monocytogenes poorly pasteurized milk or lunch meat --> invade GI mucosa/phagocytes (facultative intra)
M. tuberculosis aerosol droplets
M. bovis unpasteurized milk
M. leprae nasal discharge (grows @ low temp areas of body)
K. pneumoniae Normal intestinal flora
L. pneumophila water reservoirs, but inhaled via aerosols (resp devices & AC units)
P. aeruginosa via breach of host defense barries (catheters, burns, intubations) --> normally soil/water
H. influenza aerosol droplets --> URT --> may invade submucosa & blood
B. pertussis aerosol droplets --> adhere cilia of tracheobronchial tree
C. diphtheria aerosol droplets (nasopharynx)
M. pneumoniae aerosol droplets --> adhere (via P1 adhesin) cilia of tracheobronchial tree
C. psittaci bird feces --> aerosol --> URT (invades) --> alveoli (EB --> RB --> EB)
C. pneumoniae aerosol --> URT (invades) --> alveoli (EB --> RB --> EB)
C. trachomatis D-K: infects GU columnar epithelia (neonatal as passes through canal); A-C: hand-eye contact; L1-L3: painless ulcer @ site infection
B. cereus contaminated food (reheated rice)
B. anthracis Spores from goats/cows or in soil (contact)
N. gonorrhea attaches via pili to mucosal cells of urethra/vagina
T. pallidum Sexual/casual contact --> penetrates mucous membranes --> systemic spread; transplacental
B. burgdorferi Ixodes tick (from mice)
B. recurrentis human body louse
B. hermsii ticks
Leptospire interrogans rodents/dogs/fish shed in URINE --> contaminated water (swimming) --> enter mucosal abrasion
Y. pestis flea (from rodents) --> phagocytosed to LNs; aerosol --> alveoli
Francisella tularensis ticks (from rabbits) --> multiple locally --> phagocytosed to RES (caseating granuloma)
Brucella spp. unpasteurized milk --> phagocytosed to RES (caseating granuloma/abscess)
R. prowazekii louse (from flying squirrels) --> infects endothelia
R. typhi flea (from rodents) --> infects endothelia
R. tsutsugamushi chiggers (from rodents) --> infects endothelia
R. rickettsii wood/dog tick (from dog/rodents) --> prolif in endothelia
R. akari mites (from mice) --> papule @ site
Coxiella burnetii sheep/cattle (in animal products) --> inhalation of spores
Gardnerella vaginalis normal vaginal flora
Ehrlichia chaffeensis (HME) ticks
Anaplasma phagocytophilum (HGE) Ixodes tick (from mice)
Bartonella quintana body louse
Bartonella bacilliformis sandfly
Bartonella henselae cat scratch/cat flea
S. aureus (infections) defense barrier breach or nasopharynx --> may invade bloodstream
S. aureus (toxin) tampon use or trauma/surgery (TSS); skin wound/umbilicus (scalded skin); food ingestion (food poisoning)
S. epidermidis normal skin flora --> adhere inserted medical device
S. saprophyticus enter urinary tract via sexual activity (women)
S. pneumoniae aerosol droplets (nasopharynx) --> to middle ear, sinuses, lung lymphatics to blood (lack of anti-capsular IgG)
S. pyogenes (immune) skin infection/pharyngitis (glom) or pharyngitis (RF) --> anti-strep Abs deposit in glom BM or cross-react with heart/joints
S. pyogenes (infections) aerosol droplets (adhere pharyngeal epithelia) or skin trauma (leading to infection)
S. agalactiae (GBS) normal gut & transient vaginal flora
E. faecalis normal gut flora --> overgrows when CEPHALOSPORINS remove rest flora
S. bovis normal lower GI flora --> pentrates via colonic lesions (CANCER) --> bloodstream
S. viridans normal oropharynx (S. mutans) --> ferments glucose --> demineralizes enamel; normal GI (S. intermedius)
Shigella dysenteriae fecal-oral --> endocytosed by colon --> spreads cell-cell
Salmonella typhi fecal-oral --> penetrate distal ilea/colon (Peyer's patches) --> spread via phagocytosis (gallbladder)
Salmonella enteritidis turtles/uncooked chicken --> penetrate distal ilea/colon
ETEC pili adhere (noninvade) jejunum/ileum
EHEC/STEC (zoonotic) pili adhere (noninvade) colon --> toxins may enter blood (to kidneys)
EPEC pili adhere (noninvade) ileum
EIEC pili adhere (invade) colon
E. coli (others) pili adhere urethra --> may ascend
Y. enterocolitica raw milk --> terminal ileum --> invades/inflammation --> ulcerates --> may go to mesenteric LNs
Proteus mirabilis normal GI flora or soil --> enter urinary tractt
H. pylori ingested --> colonize antrum (not invade)
V. cholera water/shellfish --> attaches proximal small intestine
V. parahaemolytica raw seafood (Japan)
C. jejuni poultry/cattle via fecal-oral --> colonizes terminal ileum (invades)
C. botulinum Canned foods/honey
C. tetani soil --> enter skin wound
C. difficile normal Gi flora --> antibiotic treatment clears rest flora (survives via spores) --> few competing flora now
C. perfringens soil/meat/poultry
B. fragilis normal GI flora --> perforation --> spills into peritoneum (facultative anaerobes clear out all O2)
Created by: lamsonma
Popular USMLE sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards