[dorsal part of the mesencephalon, formed by continuation of the dorsal cerebral peduncles across the median plane, and extending on each side from the substantia nigra to the mesencephalic aqueduct. ( CSP )]
UMLS (CSP) C0039441 - Body Part, Organ, or Organ Component
Relation/PAR: mesencephalon
Relation/CHD: red nucleus
annulus of the aqueduct