Stephen J. Schueler, M.D.

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Pneumonia due to Klebsiella Anatomy

To better understand klebsiella pneumonia, it helps to understand the anatomy of the lungs.

Inside the chest, the windpipe, or trachea, divides into two smaller tubes: the right bronchus and the left bronchus. The right bronchus enters the right lung and the left bronchus enters the left lung. The right bronchus and left bronchus branch into smaller and smaller tubes.

The smallest tubes, called bronchioles, end in tiny air sacs, called alveoli. Blood flows very close to the walls of the alveoli. Oxygen and carbon dioxide pass between the air and the bloodstream through the wall of the alveoli.

Anatomy examples:

  • The lung and airways
  • The bronchioles and alveoli
  • The lungs
  • Pulmonary vessels

Last Updated: Nov 5, 2008 References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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PubMed Pneumonia due to Klebsiella References
  1. Omwandho CO, Gruessner SE, Tinneberg HR. Early pregnancy loss and neonatal deaths associated with Klebsiella pneumonia infection: a mini review of possible occupational health risk. Arch Gynecol Obstet. 2006 Feb;273(5):258-60. Epub 2005 Nov 5. [16273411]
  2. Podschun R, Ullmann U. Klebsiella spp. as nosocomial pathogens: epidemiology, taxonomy, typing methods, and pathogenicity factors. Clin Microbiol Rev. 1998 Oct;11(4):589-603. [9767057]
  3. Shigemitsu H, Afshar K. Aspiration pneumonias: under-diagnosed and under-treated. Curr Opin Pulm Med. 2007 May;13(3):192-8. [17414126]
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