Journal of Phylogenetics & Evolutionary Biology

ISSN: 2329-9002

Open Access

Itaru Onodera


  • Research Article
    Comparative Histological Study of Parenchymal Arrangements in Three Orders of Reptilian Livers
    Author(s): Hideo Akiyoshi, Asuka Inoue-Matsuo and Itaru OnoderaHideo Akiyoshi, Asuka Inoue-Matsuo and Itaru Onodera

    This study presented detailed descriptions of parenchymal arrangements in the livers of 23 reptilian species using light microscopy, and extensively discussed this from a phylogenetic viewpoint. Hepatocyte sinusoidal structures (HSS) were classified into three different types: (I) the several-cell-thick plate type, (II) two-cell-thick plate type, and (III) one-cell-thick plate type. Parenchymal arrangements showed either the combined two- and one-cell-thick plate type or one-cell-thick plate type, whereas the sea snake in the sub-order Serpentes showed the several-cell-thick plate type. In the order Testudines, peripheral sinusoids near terminal portal veins were tortuous, becoming straighter toward terminal central veins. Melanomacrophages (MMs) were observed in sinusoidal capillaries in the order Testudinata, Crocodilia, and Squamata, but not in the sub-order Serpentes (except for t.. Read More»
    DOI: 10.4172/2329-9002.1000161

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