ハムスター十二指腸絨毛の成長に伴う形態変化

DOI 日本農学文献記事索引 Web Site Web Site PubMed

書誌事項

タイトル別名
  • Morphological Changes of Developing Duodenal Villi in Golden Hamsters
  • ハムスター ジュウニシチョウ ジュウモウ ノ セイチョウ ニ トモナウ ケイタ

この論文をさがす

抄録

Morphological changes of developing duodenal villi in prenatal, postnatal and adult hamsters were examined in light and electron microscopy. Scanning electron microscopic observation revealed that the duodenal villi first appeared at 13.5 days of gestation as square-like protuberances. At birth, the shape of villi changed from square to columnar. After suckling period, the shape abruptly changed into flat leaf-like, and then completed the morphological differentiation into adult duodenal villi. On the other hand, growth and differentiation of surface structures such as large blebs at the apices of villi and creases on the lateral surface gradually proceeded with age. Light and transmission electron microscopic observation exhibited that at the time of first appearance of villi, the surface epithelium turned from stratified to single layered. Single-layered epithelial cells developed rapidly to accomplish their growth to a great degree about one day before birth. At birth, each of these absorptive epithelial cells had a structure almost similar to that in adult.

収録刊行物

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ