noun
lower brain; base of the brain
Anatomical term referring to the inferior portion of the brain, including structures such as the brainstem and cerebellum.
脳底部には脳幹や小脳が含まれる。
The base of the brain includes the brainstem and cerebellum.
MRIで脳底部の異常が確認された。
An abnormality in the lower brain was confirmed by MRI.
小脳 (cerebellum) is located at the base of the brain and is often included when discussing the lower brain.
Compound of 脳 (brain) + 底部 (base, bottom part). A straightforward medical term.