Figure 6. (A-B) Radial organization of the OT vasculature during late DS2 (ED6; HH29) (A: H-E; B: Diaphorase).
Primitive radial vessels (arrowheads) bifurcate at the marginal zone (MZ)-premigratory zone (PMZ) interface or after entering the PMZ. Asterisks: bifurcation points. (C-D) Tangential organization of the PVP during DS3 (ED6; HH29) (Tangential sections; C: Notch D: Diaphorase). Radial vessels generate two to three terminal branches within the PMZ and form a tangentially oriented periventricular vascular plexus (Bars: A-B: 10 µm; C-D: 50 µm).