Species-specific Posture of Human Foetus in Late First Trimester

Yoshiyuki Ohmura, Seiichi Morokuma, Kiyoko Kato, Yasuo Kuniyoshi

研究成果: Contribution to journalArticle

抜粋

The ontogeny associated with the arm-hanging posture, which is considered ape-specific, remains unknown. To examine its ontogeny, we measured foetal movements of 62 human foetuses aged 10-20 gestation weeks using four-dimensional sonography. We observed that the first-trimester foetuses show this particular species-specific posture. After 11 weeks of gestation, all foetuses showed the arm-hanging posture, and the posture was most frequently observed at 14-16 weeks of gestation. Moreover, this posture often involved extension of both arms and both legs, indicating that it is not myogenic but neurogenic. Furthermore, early ontogeny suggests that it originates because of subcortical activity. Such posture extension bias and persistence indicates that vestibulospinal tract maturation involves the ontogeny of arm-hanging posture during 14-16 weeks of gestation.

元の言語英語
記事番号27
ジャーナルScientific reports
8
発行部数1
DOI
出版物ステータス出版済み - 12 1 2018

All Science Journal Classification (ASJC) codes

  • General

フィンガープリント Species-specific Posture of Human Foetus in Late First Trimester' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用