part of develops from start stage end stage midbrain tegmentum mesencephalic tegmentum zebrafish_anatomy ZFA:0000160 midbrain tegmentum Multi-tissue structure that is the ventral part of the midbrain and develops from the basal plate. The tegmentum is bordered rostrally by the synencephalon, dorsal thalamus and posterior tuberculum, ventrally by the hypothalamus, and dorsolaterally by the torus semicircularis; caudally the tegmentum is continuous with the medulla oblongata. TAO:0000160 ZFA:0001354 basal plate midbrain region multi-tissue structure brainstem pharyngula:prim-5 adult