Topic
Review Topic
0
0
Videos
1
Introduction
  • Normal flora
    • diverse bacteria colonize our skin and mucous membranes
      • relatively stable flora throughout life
    • effects on the body
      • may be beneficial (e.g., produce nutrients)
      • may be harmful (e.g., cause abscesses or skin and soft tissue infections)
      • no benefit or harm
    • neonates are born sterile but are very rapidly colonized by bacteria after birth
    • sterile areas are areas that do not come into contact with the external environment but can become infected
      • brain and spinal cord
      • lungs
      • blood
      • heart
      • bone
Normal Bacterial Flora
Site Predominant Bacteria
Skin

  • Staphylococcus epidermidis
  • Staphylococcus aureus
  • Propionibacterium acnes
Nose
  • Staphylococcus epidermidis
  • Staphylococcus aureus (in some people)
Oropharynx
  • Anaerobes
  • Viridans group Streptococcus
  • Streptococcus mutans (grows on biofilms on teeth)
Gastrointestinal tract
  • Helicobacter pylori
  • Anaerobes
    • Bacteroides
  • Escherichia coli
Urogenital tract
  • Staphylococcus saprophyticus
  • Escherichia coli
  • Group B streptococcus (Streptococcus agalactiae)
  • Lactobacillus
 
 

Please rate topic.

Average 4.6 of 5 Ratings

Thank you for rating! Please vote below and help us build the most advanced adaptive learning platform in medicine

The complexity of this topic is appropriate for?
How important is this topic for board examinations?
How important is this topic for clinical practice?
VIDEOS & PODCASTS (1)
Topic COMMENTS (2)
Private Note