File:Streeter1921 fig02.jpg

From Embryology

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Figure 2. Profile reconstruction of the dural venous system in a human embryo 15 mm long

Carnegie Collection, No. 144, Carnegie stage 18

The primary head-vein is still intact: a more dorsal channel, however, is forming through the meshes of the middle dural plexus, coursing backward into the posterior plexus. This new channel becomes the permanent sinus tranavensus by which the sreater part of the brain is finally drained through the foramen jugulare. A course completely intercranial (sinus transversus) thus replaces one that was in part extracranial (primary head-vein). Median to the second division of the trigeminal nerve can he seen the plexiform maxillary vein, which drain the structure of the maxillary process.

Enlarged 13 diameters.


1921 Human Brain Vascular: Fig 1 | Fig 2 | Fig 3 | Fig 4 | Fig 5 | Fig 6 | Fig 7-9 | Fig 10 | Fig 11 | Fig 12 |Fig 13 | Fig 14 | Fig 15 | Fig 16 | Fig 17 | Fig 18 | Fig 19 | Fig 20 | Fig 21 | Fig 22 | Fig 23 | Fig 24 | Fig 25 | Fig 26 | Fig 27 | Plate 1 - embryos 4 mm to birth | Plate 2 - embryo 4 mm | Plate 3 - embryo 11.5 mm | Plate 4 - embryo 21 mm | Plate 5 - embryo 43 mm | Carnegie No.24 | George Streeter


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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

Streeter GL. The developmental alterations in the vascular system of the brain of the human embryo. (1921) Contrib. Embryol., Carnegie Inst. Wash. 8:7-38.


Cite this page: Hill, M.A. (2024, February 24) Embryology Streeter1921 fig02.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Streeter1921_fig02.jpg

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current03:50, 21 April 2012Thumbnail for version as of 03:50, 21 April 20121,286 × 1,000 (138 KB)Z8600021 (talk | contribs)==Figure 2== {{Streeter1921}}