ends during starts during hindlimb region The region from which the hindlimb develops, first recognizable as a slight concentration of mesenchymal cells dorsal and lateral to the anal tube at NF stage 43. The epidermal layers thicken dramatically through to NF stage 48, and become vascularised by NF stage 49. hind limb region xenopus_anatomy XAO:0000081 death anatomical region NF stage 43