title: Scanning electron microscopy of vascular architecture in the mucosa of sheep omasal laminae.
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.
authors.affiliation: Department of Veterinary Anatomy, Obihiro University of Agriculture and Veterinary Medicine, Hokkaido, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Yamamoto
authors.forename: N
authors.initials: N
authors.lastname: Kitamura
authors.forename: J
authors.initials: J
authors.lastname: Yamada
authors.forename: T
authors.initials: T
authors.lastname: Yamashita
mesh_terms: D000818:Animals; D002196:Capillaries / Q000648:ultrastructure; D016319:Corrosion Casting / Q000662:veterinary; D005260:Female; D005753:Gastric Mucosa / Q000098:blood supply* / Q000648:ultrastructure; D008297:Male; D008855:Microscopy, Electron, Scanning; D009851:Omasum / Q000098:blood supply* / Q000648:ultrastructure; D012756:Sheep / Q000033:anatomy & histology*