Stephen J. Schueler, M.D.

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Nose Bleed Anatomy

To better understand nosebleed, it helps to understand the anatomy of the nose.

The structure of the upper one-third of the nose is bone, while the lower two-thirds are made of cartilage. The nasal septum is a thin layer of bone that separates one side of the nose from the other.

The inside surfaces of the nose are lined by a thin membrane. Many small blood vessels lie beneath the membrane.

Examples of anatomy include:

  • Nasal bones
  • X-ray of nasal bones

Last Updated: Mar 26, 2009 References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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PubMed Nose Bleed References
  1. Chopra R. Epistaxis: a review. J R Soc Health. 2000 Mar;120(1):31-3. [10918781]
  2. Leong SC, Roe RJ, Karkanevatos A. No frills management of epistaxis. Emerg Med J. 2005 Jul;22(7):470-2. [15983079]
  3. Pollice PA, Yoder MG. Epistaxis: a retrospective review of hospitalized patients. Otolaryngol Head Neck Surg. 1997 Jul;117(1):49-53. [9230322]
  4. Pope LE, Hobbs CG. Epistaxis: an update on current management. Postgrad Med J. 2005 May;81(955):309-14. [15879044]
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