"Midbrain"@en . "A08.186.211.132.659" . "800"^^ . "188"^^ . "Mesencephalon"@en . "mesencephalon"@en . . . "445" . "hier" . "The midbrain or mesencephalon (from the Greek mesos, middle, and enkephalos, brain) is a portion of the central nervous system associated with vision, hearing, motor control, sleep/wake, arousal (alertness), and temperature regulation."@en .