音声病理学よりみた頭位の意義に関する実験的研究
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概要
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In the previous paper, author reported that the various head position such as the head turned or bent to one side will have great influence upon the mechanisum of phonation. Animal experiments were performed to verify the deformation of the larynx while the head is turned or bent to either side of the neck. The young dogs in the age from 3 to 6 month were used to the experiment. Their heads were fixed with plaster of Paris in the position turned and inclined to the left. After a certain period of time in these positions, larynx were removed under general anesthesia. The following new facts were observed. In the turned position of the head to one side, the horizontal level of the edge of the vocal cord on the turned side glided from up to down, and in the opposite side the horizontal level moved downwards, and the mucous membrane of the vocal cord glided from down to up. In the inclined position of the head, the horizontal level dropped down, and rose up in the opposite side. The mucous membrane of edge of vocal cord glided from up to down on the incli-ined side and in the opposite side from up to down. The above stated facts obtained, from the animal experiment agreed fairly with those observed n the human larynx of clinical cases.
- 社団法人 日本耳鼻咽喉科学会の論文