Midbrain

Midbrain (Mesencephalon)

The mesencephalon or midbrain is the greatest rostral (front) segment of the brainstem that joins the cerebellum and pons with the forebrain. For most of its portion, the midbrain sits in the posterior cranial fossa, crossing the hiatus of the tentorium cerebelli. The mesencephalon or midbrain is the smallest segment of the brainstem. However, it…