ヒト胎児の蝸牛窓の発生について

• 荘 烱欣

  Department of Otolaryngology University Tokyo

• 川端 五十鈴

  Department of Otolaryngology University Tokyo

• 野村 恭也

  Department of Otolaryngology University Tokyo

書誌事項

タイトル別名

• Development of the Round Window and its Membrane in Human Embryos

抄録

Observations were made on the development of the round window and its membrane in human embryos. Materials subjected to this study were nine fetuses of 8-36 weeks with C. R. length of 20.7mm, 50.5mm, 60.0mm, 72.0mm, 84.0mm, 155.0mm, 184.0mm, 205.0mm, and 313.0mm respectively. After these materials were fixed with formalin and embedded in paraffin, serially sliced specimens of 5 Am were prepared. The following findings were obtained from this study:<BR>1. Crista semilunaris located at the bottom of the Niche of the round window protruded from the prominentia utriculoampullaris inferior of the canaliculicular part, and was shaped by ossification of cartilage in about 22 weeks.<BR>2. Niche of the round window was related to the hiatus tympanomeningealis, which was the passageway from the cranial cavity to the middle ear.<BR>3. The round window membrane was partly produced by the dura-like structure lining cell, which surrounded the cochlear aqueduct and glossopharyngeal nerve.

収録刊行物

• 耳鼻と臨床

  耳鼻と臨床 28 (5Supplement3), 845-849, 1982

  JIBI TO RINSHO KAI

詳細情報

• CRID: 1390282680474934784
• NII論文ID: 130004402716
• DOI: 10.11334/jibi1954.28.5supplement3_845
• ISSN: 04477227
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可