ends during starts during blood vessel dorsal longitudinal anastomosing vessel xenopus_anatomy lab Vessel into which intersomitic vessels enter in a regular pattern at each intersomitic junction. Posterior to the gut, the DLAV drains into the fused posterior cardinal vein by a minor right branch and a major left branch. By NF stage 36 the DLAV extends fully to the tip of the tail. XAO:0004177 DLAV 2011-08-31T01:27:30Z NF stage 35 and 36 NF stage 66