File:Streeter1921 fig12.jpg

Figure 12. Section showing the sagittal plexus in a human embryo 21 mm long

Carnegie Collection, No. 460 (slide 11, row 3, section 4), injected with India ink.

The arrangements are similar, but more advanced than those shown in figure 11. The straight sinus can be recognized. The superior sagittal sinus still has the form of a bilaterally asymmetrical plexus from which a finer meshwork extends into the loose falciform tissue intervening between the two hemispheres and anastomoses with the straight sinus. On the left side a characteristic communication can be seen connecting the deep cerebral plexus with the coarser sagittal plexus above.

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, April 27) Embryology Streeter1921 fig12.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Streeter1921_fig12.jpg

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