Topography and function of the mesenteric capillary circulation
Topography and function of the mesenteric capillary circulation
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DOI：
10.1002/aja.1000750204
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发表时间：
1944-09-01
影响因子：
--
通讯作者：
Zwetifach, BW
中科院分区：
文献类型：
--
作者：
Chambers, R;Zwetifach, BW
本文的结果为在狗网膜和大鼠阑尾系膜的毛细血管床中存在调节心率和amt的精确机制提供了证据。血液流过床。毛细血管循环的相对自主性主要取决于两个特征。一个是毛细血管床的肌肉血管的高度特异性排列。另一个是其肌肉成分的暴露配置，虽然通常受到缩窄神经冲动的影响，但很容易受到局部组织条件的放松影响。后小动脉是一个新的术语，用来表示从终末小动脉到始端小静脉穿过毛细血管床的毛细血管样中央通道的不连续的肌性近端部分。后小动脉及其前毛细血管分支，与括约肌一起供应，对缩窄剂和扩张剂药物具有高度反应性。在正常情况下，它们自发地经历交替的收缩和扩张阶段。这种运动称为血管运动，控制毛细血管床的缺血和充血。
The results presented in this paper offer evidence for the existence, in the capillary bed of the omentum of the dog and the mesoappendix of the rat, of a precise mechanism for conditioning the rate and amt. of blood flow through the bed. The relative autonomy of the capillary circulation depends largely on 2 features. One is the highly specific arrangement of the muscular vessels of the capillary bed. The other is the exposed disposition of its muscular elements which, although normally subject to constrictor nerve impulses, readily come under the relaxing influence of local tissue conditions. A new term, metarteriole, is introduced to indicate the discontinuously muscular, proximal portion of the capillary-like central channel which courses through the capillary bed from the terminal arteriole to the beginning venule. The metarteriole and its precapillary offshoots, supplied with sphincters, are highly reactive to constrictor and dilator drugs. Under normal conditions they spontaneously undergo alternating constrictor and dilator phases. This type of movement, termed vasomotion, controls the ischemia and hyperemia of the capillary bed.