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出血时血管收缩的机制。

Mechanisms of blood vessel constriction during hemorrhage.

作者信息

Hall J E, Schwinghamer J M, Lalone B

出版信息

Am J Physiol. 1976 Mar;230(3):569-78. doi: 10.1152/ajplegacy.1976.230.3.569.

DOI:10.1152/ajplegacy.1976.230.3.569
PMID:1266960
Abstract

The contributions of sympathetic nerves, circulating hormones, and passive vascular recoil to vasoconstriction and transcapillary fluid reabsorption in skin and skeletal muscle were examined in the forelegs of 55 pentobarbitalized dogs by using a combined gravimetric and segmental resistance technique. Hemorrhage elicited large increases in forelimb segmental vascular resistances and in the rate of extravascular fluid reabsorption. Only a small part of these responses could be attributed to the passive effects of reducing forelimb perfusion pressure.

摘要

采用重量法和节段阻力法相结合的技术,对55只戊巴比妥麻醉犬的前肢进行研究,以探讨交感神经、循环激素和被动血管弹性对皮肤和骨骼肌血管收缩及跨毛细血管液体重吸收的作用。出血引起前肢节段血管阻力和血管外液体重吸收率大幅增加。这些反应中只有一小部分可归因于降低前肢灌注压的被动效应。

相似文献

1
Mechanisms of blood vessel constriction during hemorrhage.出血时血管收缩的机制。
Am J Physiol. 1976 Mar;230(3):569-78. doi: 10.1152/ajplegacy.1976.230.3.569.
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Changes in forelimb weight and segmental vascular resistances following severe hemorrhage.严重出血后前肢重量和节段性血管阻力的变化。
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Carotid baroceptor influence on total and segmental resistances in skin and muscle vasculatures.颈动脉压力感受器对皮肤和肌肉血管系统的总阻力及节段性阻力的影响。
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2
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