File:Streeter-plate05.jpg

Plate 5. The developmental alterations in the vascular system of the brain of the human embryo

Left profile view of a wax-plate reconstruction of the blood-vessels of the brain in a human embryo 43 mm. long (Carnegie Collection, No. 886). Enlarged 8 diameters. (original print version)

The vascular architecture is at this stage beginning to approximate the adult condition, although the whole tentorial region retains its embryonic character, due to which the marked subsequent migration of the transverse sinus is possible. It will be noted that the sigmoid portion of the sinus is fairly well established.

--Mark Hill 09:39, 17 February 2011 (EST) Post-Embryonic based upon CRL

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