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test 4 pt 2
cardiovascular lymphatic
44
Microbiology
Undergraduate 2
07/28/2014

Additional Microbiology Flashcards

 


 

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Term
Bacteremia
Definition
blood is normally sterile
bacteremia is when bacteria appear in blood
-ex: brushing teeth
Term
Septicemia
Definition
bacteria in blood causing an immune response (inflammatory) in the blood
--sepsis/septic shock
---decreased bp, organ failure
most often bacillus
exotoxin triggers immune reaction>shock>death
Term
Bacterial endocarditis
Definition
inflammation
-inner epitelial layer of the heart
esp heart valve
strep throat>theumatic fever> endocarditis
damaged heart valve
Term
2 types of bacterial endocarditis
Definition
acute and subacute
Term
Acute bacterial endocarditis
Definition
rapid onset symptoms
-shaking chills, spiking fever
high fatality rate
--needs prompt aggressive treatment
---antibiotics
damaged or normal heart valve involved
S. aureus, S. pyogenes, N. gonnorhea
Term
Subacute bacterial endocarditis
Definition
slower onset
-bacteria piles up on valve
low grade fever, fatigue, anemia
involves mainly damaged valves and normal bacteria of mouth and throat
Term
Rheumatic fever
Definition
autoimmune complication of group a beta hemolytic strep infection
-may be genetic
occurs 2-3 weeks after strep throat
-fever, arthritis, rash,heart damage
Term
Gangrene
Definition
Clostrida spp.
endospores
soil bacteria
-easy to get into wounds
obligate anerobe-grows in damaged,dead, low o2 areas.
Term
Gas Gangrene
Definition
C. prefringens
gas gangrene
-ferments sugars
-pockets of gas in tissue
-hydrogen/co2
-crackling noise
fatal untreated
penicillin
Term
Bites and scratches
Definition
domestic animals
dogs, cats
-Pasturella multocida
local infection, pneumonia, septicemia
Humans>bites/clenched fist injuries often worse than animal bite
5% require amputation
Term
Mouth
Definition
S. Aureus
bacteroides
Fusobacterium
septicemia, tissue destruction, inflammation, swelling
Term
Plague
Definition
Yersinia pestis
gram neg
Killed large number of people
vector rat flea
both ill
resevoir rats
-rodents-mice, squirrels, beavers..
Term
Lyme disease
Definition
Borrelia burgdorferi
vector tick
-Ixodes
reservoir
-field mice, other
no person to person
rash at bite site, sometimes
flue like symptoms
longer last, more damage, hard to treat
Term
Epstien Barr virus
Definition
in everybody
normally ok
Mononucleosis
-fever, sore throat, swollen neck, lymph nodes, enlarged spleen
usually self healing
saliva transmission
mild in children
severe in adults
Term
EBV virus
Definition
chronic fatigue syndrome
Burkitts lymphoma
-B cell cancer
Term
Taxoplasmosis
Definition
protist
taxoplasma gondii
sex mature in cat intestines
shed in cat feces
unlikely in indoor cat
bad for pregnany women, damage/death to fetus
Term
Malaria
Definition
plasmodium spp
-4 spp
300-500 million effected worldwide
20-40 million die
P. falciparum most dangerous
characteristic schedule
every 38 to 48 hrs depending on specie
last 6 hrs
chills fever
Term
Schistosomiasis
Definition
blood flukes
millions worldwide
heart disease, epilepsy, kidney failure, cirrhosis of liver
-fever, rash,body pains, cough,dysentry
stays 30 yrs lays 3500 eggs/day
eggs in intestine/bladder-leave
eggs in body-bad
Term
2 Parts of respiratory system
Definition
upper
-nose, throat, middle ear
Lower
-larynx trachea, bronchial tubes, alveoli
Term
Strep throat
Definition
group a beta hempolytic s.pyogenes
respiratory route
resist phagocytosis
penicillin effective
could cause rheumatic fever and glomerulonephritis
Term
common cold
Definition
rhinoviurs
113 kinds
likes cooler body temp
33-34C
upper respiratory epithelium
corona virus
Term
Tuberculosis
Definition
mycobacterium tuberculosis
acid fast
respiratory route
long generation time
-33 hrs
sensitive to uv/ sunlight
resist drying out, last long onsurface
macrophage unable to digest it
multiplies inside macrophage
Term
Bacterial pneumonias
Definition
inflammation of lung tissue
typical pneumonia
-strep pneumoniae
atypical
mycolasma, chlamydia, virus
Term
Pneumomococcal pneumonia
Definition
most common
strep pneumonia
capsule
diplococcus
fever, chest pain, rust colored sputum
vaccine of purified capsular material
Term
Mycoplasma pneumonia
Definition
no cell walls
cholesterol in membrane
smallest free living bacteria
walking pneumonia
-low grade fever, dry cough, headache
Term
Psittacosis
Definition
associated with birds
Chlamidia psittaci
-obligate intracellular parasite
2 forms-out cell, inside cell
contact with bird droppings
Term
viral pneumonia
Definition
often complication of measels, chicken pox
respiratory syncytial virus
most common pneumonia in infants
Term
Influenza
Definition
8 pandemics since 1889
kills healthy people
RNA virus,
capsule with spikes
hemagglutin, helps attatch
Neuraminidase, helps release
treatment-guess of which type will come
Term
Hanta virus
Definition
reservoir mice
breathe air contaminated with dropping
ok morning, respirator afternoon, dead night
pulmonary edema to death
Term
Coccidiomycosis
Definition
fungus
Coccidiodes immitis
dimorphic
soil fungus
-spores carried by wind
SW us/california
symptoms like TB
Term
Urinary system infection
Definition
usually opportunistic
Factors: disorders of the nervous system
Diabetes
Obstruction of urine flow
closeness of intestinal gram neg bacteria, especially in females
Term
Ureteritis
Definition
inflammation of urethra
Term
Cystitis
Definition
inflammation of urinary bladder
usually more common infemales due to shorter urethra
dysuria-painful urination
pyruia-leukocytes in urine
Ecoli, staph saphrophyticus
Term
Pyelonephritis
Definition
inflammation of kidney
Term
Gonorrhea
Definition
gram neg Neisseria gonnorrhea
in females-most asymptomatic
attatch to mucosal cells by fimbrae/pili
complications occur if it goes systemic
infected mother-baby becomes blind antibiotics in eyes
Term
Non gonococcal urethritis
Definition
caused by chlamydia trachomatis
40 acquired thru sex
usually mild/asymptomatic
sterility may occur
Term
Syphillis
Definition
spirochate, trponema pallidum
several stages to disease.
-Primary chancre
-secondary rash
-tertiary gumma
Term
Urinary system infection
Definition
usually opportunistic
Factors: disorders of the nervous system
Diabetes
Obstruction of urine flow
closeness of intestinal gram neg bacteria, especially in females
Term
Ureteritis
Definition
inflammation of urethra
Term
Cystitis
Definition
inflammation of urinary bladder
usually more common infemales due to shorter urethra
dysuria-painful urination
pyruia-leukocytes in urine
Ecoli, staph saphrophyticus
Term
Pyelonephritis
Definition
inflammation of kidney
Term
Gonorrhea
Definition
gram neg Neisseria gonnorrhea
in females-most asymptomatic
attatch to mucosal cells by fimbrae/pili
complications occur if it goes systemic
infected mother-baby becomes blind antibiotics in eyes
Term
Non gonococcal urethritis
Definition
caused by chlamydia trachomatis
40 acquired thru sex
usually mild/asymptomatic
sterility may occur
Term
Syphillis
Definition
spirochate, trponema pallidum
several stages to disease.
-Primary chancre
-secondary rash
-tertiary gumma
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