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  • Title: Scanning electron microscopy of vascular architecture in the mucosa of sheep omasal laminae.
    Author: Yamamoto Y, Kitamura N, Yamada J, Yamashita T.
    Journal: J Vet Med Sci; 1991 Oct; 53(5):833-8. PubMed ID: 1836370.
    Abstract:
    Three dimensional vascular architecture in the omasal laminae of sheep was studied by scanning electron microscopy of corrosion casts. The omasal laminae were equipped with well-developed subepithelial capillary network with various capillary loops and inter-papillar undulations. The capillary loops were more highly developed in the omasal papillae than in the inter-papillar space and more in the oral region than in the aboral. The capillary loops were inconspicuous in the inter-papillar space of the middle and aboral regions and in the omasal papillae of the aboral region. On the other hand, the inter-papillar undulation of the capillary network was more conspicuous in the aboral region than in the other regions of the omasal mucosa. These findings may indicate a regional diversity in the function of the omasal laminae.
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