part of develops from start stage end stage hindbrain cerebellum zebrafish_anatomy Brain structure derived from the anterior hindbrain, and perhaps including posterior midbrain. The cerebellum plays a role in somatic motor function, the control of muscle tone, and balance. In zebrafish, with the exception of the cerebellum, the ventral remainder of the metencephalon can be separated only arbitrarily from the more caudal myelencephalic portion of the medulla oblongata and thus these are not distinguished here. ZFA:0000100 TAO:0000100 upper rhombic lip multi-tissue structure segmentation:26+ somites adult