지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2012.1
- 수록면
- 1,028 - 1,035 (8page)
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Purpose: Although the rectus abdominis and its sheath are well known structures, their development in the human fetus is poorly understood. Materials and Methods:We examined rectus abdominis and sheath development in semiserial horizontal sections of 18 fetuses at 5-9 weeks of gestation. Results: Rectus muscle differentiation was found to commence above the umbilicus at 6 weeks and extend inferiorly. Until closure of the anterior chest wall via fusion of the bilateral sternal anlagen (at 7 weeks), the anterior rectal sheath originated from the external oblique and developed towards the medial margin of the rectus abdominis at all levels, including the supracostal part. After formation of the anterior sheath, fascial laminae from the internal oblique and transversus abdominis contributed to formation of the posterior rectus sheath. However, the posterior sheath was absent along the supracostal part of the rectus abdominis, as the transversus muscle fibers reached the sternum or the midline area. Therefore, it appeared that resolution of the physiological umbilical hernia (8-9 weeks) as well as chest wall closure was not required for development of the rectus abdominis and its sheath. Conversely, in the inferior part of the two largest fetal specimens, after resolution of the hernia, the posterior sheath underwent secondary disappearance, possibly due to changes in mechanical stress. Conclusion: Upward extension of the rectus abdominis suddenly stopped at the margin of the inferiorly developing pectoralis major without facing the external intercostalis.
The rectus thoracis, if present, might correspond to the pectoralis.
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참고문헌 (27)
참고문헌 신청
Blees G. / 1968 / A peculiar type of sternalis muscle / Acta Morphol Neerl Scand 7 : 69 ~ 72
Brewer S / 2004 / Loss of AP-2alpha impacts multiple aspects of ventral body wall development and closure / Dev Biol 267 : 399 ~ 417
Christ B / 1983 / On the origin and development of the ventrolateral abdominal muscles in the avian embryo. An experimental and ultrastructural study / Anat Embryol 166 : 87
Durland JL / 2008 / Visualizing the lateral somitic frontier in the Prx1Cre transgenic mouse / J Anat 212 : 590 ~ 602
Evans DJ / 2006 / Skeletal muscle translocation in vertebrates / Anat Embryol 211 (Suppl 1) : 43 ~ 50
Brewer S / 2004 / Loss of AP-2alpha impacts multiple aspects of ventral body wall development and closure / Dev Biol 267 : 399 ~ 417
Christ B / 1983 / On the origin and development of the ventrolateral abdominal muscles in the avian embryo. An experimental and ultrastructural study / Anat Embryol 166 : 87
Durland JL / 2008 / Visualizing the lateral somitic frontier in the Prx1Cre transgenic mouse / J Anat 212 : 590 ~ 602
Evans DJ / 2006 / Skeletal muscle translocation in vertebrates / Anat Embryol 211 (Suppl 1) : 43 ~ 50
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