File:Streeter1915 fig09.jpg

Figs. 7, 8 and 9. Three stages in the formation of the sagittal plexus

Showing its asymmetrical character and its conversion into the superior sagittal sinus. Draining into it from below is the drainage channel from the chorioidal bodies which becomes the straight sinus. The channels marked ‘x’ are interpreted as undergoing retrogression, being replaced by more caudal channels.

Figure 7 is a vertex view of a. human embryo 13.8 mm. long (No. 940, Carnegie Collection).

Figure 8 is a vertex view of an embryo 20 mm. long (No. 349, Carnegie Collection).

Figure 9 is a drawing of an injected and cleared specimen 54 mm. long (No. 458, Carnegie Collection).

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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)

Links: 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 | Streeter 1915 | Neural Vascular | Historic Papers

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  fig 1 embryo 4 mm No. 588

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  fig 2 embryo 13.8 mm No. 940

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  fig 3 embryo 18 mm No. 144

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  fig 4 embryo 21 mm No. 460

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  fig 5 embryo 24 mm No. 632

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  fig 6 embryo 50 mm No. 96

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  fig 7 embryo 13.8 mm No. 940

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  fig 8 embryo 20 mm No. 349

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  fig 9 fetus 54 mm No. 458

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  fig 10 embryo 4 mm No. 588

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  fig 11 embryo 14 mm No. 940

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  fig 12 embryo 18 mm No. 144

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  fig 13 embryo 21 mm No. 460

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  fig 14 embryo 35 mm No. 100

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  fig 15 embryo 50 mm No. 96

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  fig 16 embryo 80 mm No. 234a

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  fig 17 adult

Reference

Streeter GL. The development of the venous sinuses of the dura mater in the human embryo. (1915) Amer. J Anat.18: 145-178.

Cite this page: Hill, M.A. (2024, April 26) Embryology Streeter1915 fig09.jpg. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/File:Streeter1915_fig09.jpg

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G