infratentorial region infratentorial region in anatomy, the infratentorial region of the brain is the area located below the tentorium cerebelli. the area of the brain above the tentorium cerebelli is the supratentorial region. the infratentorial region contains the cerebellum, while the supratentorial region contains the cerebrum. the infratentorial dura is innervated by nerves from c1-c3. infratentorial region this article is issued from wikipedia. the text is licensed under creative commons - attribution - sharealike. additional terms may apply for the media files.