大腸運動に関する研究 : V.結腸膨起の生理的意義に対する一考察

概要

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The present investigations were initiated to discuss on the physiological meanings of Haustra coli as well as Taenia coli, which are well developed in horses and rabbits. The results obtained are summarized as follows. (1) The length of the proximal colon in rabbit is 36.1±3.7cm., while it extends to 102.6±17.2cm. after removing the bands. (2) By suturing the mesentery of rabbit's isolated jejunum and shortening the gut to one-third of its length, the artificial haustra can be made. Then the movements of the gut were observed after Ohkubo's circulatory method. a. In the part provided with the haustra (oral side) the rate of conduction of the peristalsis were 1.5〜2.3cm/sec in confidence limit of mean at the level of 5%, while those in the control part (anal side) were 2.6〜3.6cm/sec. Also in case of making haustra on the oral side similar results were obtained. b. The peristaltic waves are propagated slowly at the bottom of the artificial haustra, quickly at the swelling to the contrary. (3) In rabbit, the chief absorption of water occurs in the proximal colon. (4) From the above described facts, the physiological meanings of Haustra coli as well as Taenia coli can be assumed as follows. By the presence of the Haustra coli, the slow conduction of the peristalsis and the prolongation of the food passage may occur, and thus the water absorption and scybala formation may take place.
鹿児島大学の論文
1954-11-30