Odette 1516 Views July 11, 2017, 06:35:07 AM Question Solved Share Tweet The two main structures of the brain stem are the: a. hippocampus and the amygdala. b. cerebellum and the thalamus. c. thalamus and the hypothalamus. d. medulla and the pons. Virgina July 11, 2017, 06:36:04 AM #1 Answer Answer: d Simon July 11, 2017, 06:46:51 AM #2 Keep it up!