The<unk>  or the<unk>  tegmental area <unk> A)<unk> , Latin for covering) is part of the midbrain, lying close to the substantia nigra and the red nucleus.
Ventral tegmentum
Periaqueductal gray
Gracile nucleus
Inferior cerebellar peduncle
Zona reticularis
Caudate nucleus
Mammillary body
Cuneate nucleus