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Anatomic and physiologic considerations in sinusitis.

M Wagenmann1, R M Naclerio

  • 1Division of Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, Md.

The Journal of Allergy and Clinical Immunology
|September 1, 1992
PubMed
Summary
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Understanding sinusitis requires knowledge of nasal anatomy and physiology, particularly mucociliary clearance. Obstruction of the osteomeatal complex impairs this clearance, playing a key role in sinusitis development.

Area of Science:

  • Otolaryngology
  • Respiratory Physiology

Background:

  • Sinusitis understanding relies on nasal and paranasal sinus anatomy/physiology.
  • Airflow, blood flow, nasal cycle, histology, and developmental anatomy are crucial.
  • These factors condition inhaled air (warming, humidifying, filtering).

Purpose of the Study:

  • To explain the anatomical and physiological basis of sinusitis.
  • To highlight the role of mucociliary clearance in sinusitis pathophysiology.

Main Methods:

  • Review of nasal and paranasal sinus anatomy and physiology.
  • Description of airflow, blood flow, and nasal cycle.
  • Explanation of mucociliary clearance mechanisms.

Main Results:

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  • The nasal cavity and sinuses are lined with ciliated epithelium that clears mucus.
  • Ciliary action directs mucus toward natural ostia, primarily in the osteomeatal complex.
  • Obstruction in the osteomeatal complex compromises clearance and contributes to sinusitis.

    • Conclusions:

    • Nasal anatomy and mucociliary function are central to sinusitis.
    • Osteomeatal complex obstruction is a key factor in sinusitis pathophysiology.