Inferior olivary nucleus is present in
The inferior olivary nucleus, a cerebellar relay nucleus, is the most prominent nucleus in the lateral medulla. Coordinate signals from the spinal cord to the cerebellum to regulate motor coordination and learning. fig:- crossection at the level of medulla(upper pa)
Base of pons
Midbrain, at level of superior colliculus
Midbrain, at level of inferior colliculus
Lateral medulla
Brainstem, cerebellum and ventricles