Snyder G K
Department of EPO Biology, University of Colorado, Boulder 80309.
J Anat. 1988 Feb;156:97-106.
Anterior and posterior latissimus dorsi muscles of twelve chickens were injected with India ink to visualise their microvasculature. Both muscles have multiple feeding arterioles that branch into a meshwork of arcade arterioles. Transverse arterioles arise from the arcade system and these, in turn, give rise to capillaries. The major differences in the microvasculatures of the two muscles are in the numbers of vessels in the arcade meshworks and the dimensions of these vessels. The differences in geometry and topology of the arcade vessels suggest that the microvasculature in the anterior latissimus dorsi may be able to support levels of oxidative metabolism almost 8 times higher than those in the posterior latissimus dorsi.
向12只鸡的背阔肌前、后部注射印度墨水，以观察其微血管系统。两块肌肉都有多个供血小动脉，这些小动脉分支形成动脉弓网络。横行小动脉起源于动脉弓系统，进而产生毛细血管。两块肌肉微血管系统的主要差异在于动脉弓网络中的血管数量及其尺寸。动脉弓血管在几何形状和拓扑结构上的差异表明，背阔肌前部的微血管系统可能能够支持比背阔肌后部高出近8倍的氧化代谢水平。
