File:Ingalls1918 plate 2 fig5+6.jpg

Plate 2

Photographs of sections of axial structures, the location and direction of which are indicated in the text-figures. In all the photographs and drawings the right side of the embryo is on the left in the plates, i. e. all views looking caudad. Dorsal structures are cut slightly more anterior than ventral ones. (Cf. text-figure 3.)

1. Section 425. Posterior part of primitive streak. X 160.

2. Section 406. Most caudal section in which archenteric canal appears. Its location may be recognized by the absence of nuclei. X 160.

3. Section 401. Archenteric canal where largest and be.st defined. X 400.

4. Section 395. Large (second) ventral opening, "plaque notochordale" very distinct. X 400.

5. Section 380. Completion plate where best developed. X 160.

6. Section S75. Completion plate near anterior limit. X 160.

Contribution No.23: Figures | Plate 1 | Plate 2 | Plate 3 | Plate 4 | Plate 1 | Carnegie - Contributions to Embryology | Carnegie stage 8 | Category:Carnegie Stage 8 | Historic Embryology Papers

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Pages where the terms "Historic" (textbooks, papers, people, recommendations) appear on this site, and sections within pages where this disclaimer appears, 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, interpretations and recommendations may not reflect our current scientific understanding.     (More? Embryology History | Historic Embryology Papers)

Reference

Ingalls NW. A human embryo before the appearance of the myotomes. (1918) Contrib. Embryol., Carnegie Inst. Wash. No.23 Publ. 227, 7:111-134.

Cite this page: Hill, M.A. (2024, April 26) Embryology Ingalls1918 plate 2 fig5+6.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Ingalls1918_plate_2_fig5%2B6.jpg

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Historic Disclaimer - information about historic embryology pages

Pages where the terms "Historic" (textbooks, papers, people, recommendations) appear on this site, and sections within pages where this disclaimer appears, 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, interpretations and recommendations may not reflect our current scientific understanding.     (More? Embryology History | Historic Embryology Papers)