Midbrain

Introduction

• Upper part of the brainstem
• Between the pons and the subthalamic area
• Fills up the tentorial notch
• Lies on the dorsum sella turcica
• Laterally: separated from the parahippocampal gyrus by the transverse cerebral fissure
• Connected to the cerebellum via the superior cerebellar peduncles
• The aqueduct of midbrain divides the midbrain into two parts:
  • The cerebral peduncles
  • The tectal lamina