Mongolian gerbilにおける脳幹部微小構築について-india ink法とMercox注入法-

概要

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The perforating vessels in the brainstem of the Mongolian gerbil were ex-amined by India ink injection and the brainstem microvascular architecture was examined by Mercox injection.<BR>1. Three types of perforating vessels were identified. Type 1 perforators branched into capillaries soon after penetrating the brainstem, type 2 perfora-tors changed into capillaries in the middle of the brainstem, and type 3 perfo-rators penetrated the dorsal part of the brainstem and changed into capillaries. The diameter of type 1 perforators was 10-15μm, that of type 2 was 20-25μm, and that of type 3 was 35-55μm.<BR>2. The capillary blood vessels generally showed T-shaped or Y-shaped branching but occasional atypical configurations were observed. The blood flow may be regulated by these different configurations.<BR>3. We observed no difference between the capillary blood vessels of the vestibular nucleus and those of the cochlear nucleus.<BR>4. We observed that the brainstem contains a dense capillary network, and that blood flow in the perforators was regulated by the site of entry into the brainstem and by the diameter of the perforating vessel.
日本めまい平衡医学会の論文