2024-03-29T09:01:08Z
https://soar-ir.repo.nii.ac.jp/oai
oai:soar-ir.repo.nii.ac.jp:00016876
2023-01-18T02:25:49Z
1628:1629:1652
人指、家兎耳翼、ラット尾における寒冷誘発血管反射の血流動態の相違
Hemodynamic variations of cold-induced vasooscillations on human finger,rabbit ear and rat tail
竹岡, みち子
酒井, 秋男
柳平, 担徳
金子, みち代
上田, 五雨
laser-Doppler blood flow meter
arterio-venous anastomoses
レーザー・ドップラー組織血流計
動静脈吻合
:C old-induced vasooscillation has been studied in the rabbit ear,ra t tail and human finger. This oscillation was attributed to opening of arterio-venous anastomoses (A V A) caused by exposure to cold. Since hemodynamic variations among those three species were observed by laser-Doppler blood flow meter measurement at O'C local cold exposure,th e blood flow changes were compared,1. Blood flow changes for 5 min after immersion in 0 'C.1n the rabbit ears,in creases fromcontrol values of blood flow by cooling were seen in four of nine cases,decreases were in four and no change in one. 1n rat tails,in creases of blood flow by cooling were seen infive of eleven,d ecreases were in three,a nd no changes were in three. The blood flow in human fingers,however,de creased in all nine cases by the O'C exposure.11. Openings of AVA at two 1 cm -interval points by O'C exposureSyntonic openings of A V A were not observed at two close points in rabbit earsand rat tails. 1ncrease oftemperature did not follow the AV A opening. 1n human fingers,h owever,o penings of AVA occurredsimultaneously at two close points. The local blood temperature was raised with the flow increase induced by AVA opening
Article
環境科学年報15:27-32(1993)
research report
信州大学環境科学研究会
1993-03-31
application/pdf
環境科学年報
15
27
32
0915-7492
AN1054947X
https://soar-ir.repo.nii.ac.jp/record/16876/files/15-05.pdf
jpn