File:Waterston04.jpg

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Fig. 4. Section of head end of embryo

T.S. of head end of embryo.

27 Somite Paper: Fig 1 | Fig 2 | Fig 3 | Fig 4 | Fig 5 | Fig 6 | Fig 7 | Fig 8 | Fig 9 | Fig 10 | Fig 11 | Fig 12 | Fig 13 | Fig 14 | Fig 15 | Fig 16 | Fig 17 | Fig 18 | Fig 19 | Fig 20

Legend

  • A - neural tube
  • B - neural crest
  • C - somite
  • D - notochord in pharyngeal wall
  • E - anterior cardinal vein
  • F - pharynx
  • G,H and L - pharyngeal arches
  • K - thyroglossal duct
  • M - optic pouch


Carnegie Staging Comparison: A 27 somite stage embryo would be similar to a Carnegie stage 12 (26 - 30 days), caudal neuropore closes, Somite Number 21-29.


Historic Disclaimer - information about historic embryology pages
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Pages where the terms "Historic Textbook" and "Historic Embryology" appear on this site, indicate that the content and scientific understanding are specific to the time of publication. This means that while some scientific descriptions are still accurate, the terminology and interpretation of the developmental mechanisms reflect the understanding at the time of original publication and those of the preceding periods, these terms and interpretations may not reflect our current scientific understanding. (More? Embryology History)


Historic Paper Links: 13-14 Somites | 22 Somites | 23 Somites | 25 Somites | 27 Somites | Mall Human Embryo Collection | Embryology History | Carnegie stage 11 | Carnegie stage 12 | Embryonic Development | Category:Historic Embryology


Reference

D Waterston A Human Embryo of Twenty-seven Pairs of Somites, Embedded in Decidua. J Anat Physiol: 1914, 49(Pt 1);90-118 PMID:17233016 | PMC1288995

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Date/TimeThumbnailDimensionsUserComment
current15:37, 27 January 2012Thumbnail for version as of 15:37, 27 January 2012500 × 763 (75 KB)S8600021 (Talk | contribs)==Fig. 3. Section of head end of embryo== T.S. of head end of embryo. ===Legend=== A, neural tube B, neural crest C, somite D, notochord in pharyngeal wall E, anterior cardinal vein F, pharynx G,H and L, pharyngeal arches K, thyroglossal duct M, optic
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