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Functions of the mastoid cell system: Auto-regulation of temperature and gas pressure
Linköping University, Faculty of Health Sciences. Linköping University, Department of Neuroscience and Locomotion, Oto-Rhiono-Laryngology and Head & Neck Surgery. Östergötlands Läns Landsting, RC - Rekonstruktionscentrum, ÖNH - Öron- Näsa- Halskliniken.
2003 (English)In: Journal of Laryngology and Otology, ISSN 0022-2151, Vol. 117, no 2, 99-103 p.Article in journal (Refereed) Published
Abstract [en]

This article presents a new approach to understanding the physiological functions of the mastoid cell system. It is suggested that the cell system, in combination with the continuous blood flow through the adjacent large vessels, makes up a compound functional unit that serves to protect the sensitive vestibular part of the inner ear from inadequate stimulation by external temperature changes. By virtue of the large surface area of the cell system mucosa with respect to the enclosed gas volume, the mastoid cell system may also work as a pressure regulator. Variations of the bi-directional exchange of fluid over the capillary network in the mucosa will change the size of the lumen that is available for the gas in the cell system. Volumes of gas and fluid can thus be exchanged to keep the intratympanic pressure within physiological limits. The process is most effective in a cell system with a high area-to-volume ratio.

Place, publisher, year, edition, pages
2003. Vol. 117, no 2, 99-103 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:liu:diva-27865DOI: 10.1258/002221503762624512Local ID: 12625OAI: diva2:248417
Available from: 2009-10-08 Created: 2009-10-08 Last updated: 2011-01-13

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Magnusson, Bengt
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Faculty of Health SciencesOto-Rhiono-Laryngology and Head & Neck SurgeryÖNH - Öron- Näsa- Halskliniken
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Journal of Laryngology and Otology
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