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On the right, schemes to represent the method in which the change is brought about. A, B, F, alar, basal, and floor laminae.
On the right, schemes to represent the method in which the change is brought about. A, B, F, alar, basal, and floor laminae.
The hinder limb of the U-groove is lost in the upper part of the true interlaminar sulcus. When the alar lamina begins to grow in thickness the interlaminar sulcus is pushed forward, so that it runs into the U-groove nearer its lowest part. This is seen in text-fig. 5, in which a sagittal section of the region in an embryo of 19 mm. is shown.


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Latest revision as of 14:17, 9 January 2017

Text-fig. 5. Sagittal section 19 mm embryo

On left, showing the intermediate stage in the changing aspect of the wall "of the cavity.

On the right, schemes to represent the method in which the change is brought about. A, B, F, alar, basal, and floor laminae.

The hinder limb of the U-groove is lost in the upper part of the true interlaminar sulcus. When the alar lamina begins to grow in thickness the interlaminar sulcus is pushed forward, so that it runs into the U-groove nearer its lowest part. This is seen in text-fig. 5, in which a sagittal section of the region in an embryo of 19 mm. is shown.


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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

Frazer JE. Development of the region of the isthmus rhombencephali. (1928) J Anat. 63: 7-18. PMID 17104212


Cite this page: Hill, M.A. (2024, March 29) Embryology Frazer1928 fig05.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Frazer1928_fig05.jpg

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