Anderson W D, Anderson B G, Seguin R J
Department of Veterinary Anatomy, College of Veterinary Medicine, Ohio State University, Columbus.
Acta Anat (Basel). 1988;131(4):305-13. doi: 10.1159/000146533.
Morphological features of the coronary microvasculature were examined in ten Black bears (Ursus americanus). Tissue samples were collected for scanning electron microscopy from five animals, and vascular casts of the coronary vessels were prepared from five. Each portion of the microvasculature examined had specific morphological characteristics which may contribute to the control of blood flow. All indications from the present study suggest that the structure of the coronary microvasculature in the Black bear is similar to that of mammalian species previously examined.
对十只黑熊（美洲黑熊）的冠状微血管形态特征进行了检查。从五只动物身上采集组织样本用于扫描电子显微镜检查，从另外五只动物身上制备了冠状血管的铸型。所检查的微血管的每个部分都有特定的形态特征，这可能有助于控制血流。本研究的所有迹象表明，黑熊冠状微血管的结构与先前检查过的哺乳动物物种的结构相似。
