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Blood flow of the oral and nasal mucosa studied by the reflexion photoelectric plethysmograph. Jutaro Sakae 1 1Department of Physiology, Nagoya University School of Medicine. pp.1125-1131
Published Date 1959/12/15
DOI https://doi.org/10.11477/mf.1404200843
  • Abstract
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The blood flow of the oral and nasal mucosa was studied by the reflexion photoelectric plethysmograph using direct coupled amplifier.

1) Spontaneous fluctuations of the blood flow were observed in a cycle of a few second on the mucous membrane as well as on the skin, and these variations were very similar on the symmetrical parts. The pattern of these variations did not essentially different between the mucosa and the skin.

2) Spontaneous variations of a long duration were also found on mucous membrane, and these variations occurred independently from those of the skin.

3) In general, electric stimulation or pin prick to the leg or forehead caused vasoconstriction of the pli mucosa and vasodilatation of the nasal mucosa. Close inspection of the records, however, revealed that there are two components in vasomotor response, i. e., vasoconstrictor and vasodilator components. The former is predominant in the lip and the latter in the nasal mucosa.

4) The turbinal mucosa, except for the pulse wave, showed only the gradual increase or decrease of the blood flow. Pressure to the side of the body cauded the vasodilatation and vasocon striction of this region on the same side and the contralateral side respectively, with a latency of 0.5 to 5 min. Pressure stimuli, however, had nothing to do with the variation of a few second, seen on other mucose regions.

5) 'Saw-too thed wave' was also observed on the mucosa in a drowsy state.


Copyright © 1959, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1200 印刷版ISSN 0452-3458 医学書院

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