What structure is located in the space between the cerebrum and brain stem and houses the hypothalamus and thalamus?

• A. Cerebellum
• B. Brain Stem
• C. Diencephalon
• D. Midbrain

Answer: (C)

The diencephalon is the structure located between the cerebrum and brain stem. It sits around the third ventricle and serves as a central relay and regulatory hub. Inside it lie the thalamus and hypothalamus. The thalamus directs many sensory and motor signals to the cortex and contributes to levels of consciousness and alertness. The hypothalamus controls autonomic functions and endocrine outputs via the pituitary, coordinating things like body temperature, hunger, thirst, sleep, and circadian rhythms. The other regions listed aren’t in this interval: the cerebellum is at the back of the brain, the brain stem is below it, and the midbrain is part of the brain stem. So the area between the cerebrum and brain stem that houses the hypothalamus and thalamus is the diencephalon.