Network anatomy of arteries feeding the spinotrapezius muscle in normotensive and hypertensive rats.
Network anatomy of arteries feeding the spinotrapezius muscle in normotensive and hypertensive rats.
复制标题
正常血压和高血压大鼠中斜方肌供血的动脉网络解剖。
DOI：
10.1159/000158623
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发表时间：
1986
期刊：
影响因子：
--
通讯作者：
Zweifach,BW
中科院分区：
文献类型：
--
作者：
Schmid-Schönbein,GW;Firestone,G;Zweifach,BW
了解血流需要血管和微血管解剖的详细图片。为此，研究了正常血压和自发性高血压大鼠的脊髓背角肌供血动脉。扩张动脉并填充树脂材料，并定量分析其网络模式和血管几何形状。结果表明，在肝内存在广泛的动脉网，形成器官间血管丛。棘突肌具有来自胸背动脉和肋间动脉的多个流入，这些流入在肌肉中互连成拱廊网络。在100 mm Hg的膨胀压力下，高血压大鼠的一些但不是所有的动脉在扩张状态下比其对照组更窄。然而，肌肉内的小动脉没有显著差异，这表明结构性起源的管腔狭窄朝着微循环逐渐减少。
An understanding of blood flow requires a detailed picture of vascular and microvascular anatomy. To this end an investigation of the arteries feeding the spinotrapezius muscle in normotensive and spontaneously hypertensive rats was performed. Arteries were dilated and filled with resin materials and analyzed quantitatively for their network pattern and vessel geometry. The results show that there exists extensive meshworks of interconnected arteries forming an interorgan plexus. The spinotrapezius muscle has multiple inflows from the thoracodorsal and intercostal arteries which interconnect in an arcade network in the muscle. Some but not all arteries of hypertensive rats are narrower in the dilated state at 100 mm Hg inflation pressure than their controls. Arterioles within the muscle proper, however, are not significantly different, suggesting that lumen narrowing of structural origin is progressively reduced towards the microcirculation.