The brain is divided into four anatomical regions: the diencephalon, brainstem, cerebrum, and cerebellum, as described on the slide.[1,2]

References:
[1] Kandel ER, Schwartz JH, Jessell TM (eds). Principles of Neural Science. 4th edition. McGraw-Hill, 2000.

[2] Tortora GJ, Derrickson B. Principles of Anatomy and Physiology. 12th edition. John Wiley & Sons, 2009.