Diencephalon

Question 1

Thalamus

Answer 1

• actually a collection of about 20 different nuclei
• general role in the processing and relay of sensory information to cortex; motor information to cortex; and regulation of certain types of arousal or attention.

Question 2

Hypothalamus

Answer 2

also a collection of different nuclei; key control for many homeostatic, regulatory behaviors (feeding/drinking/sexual behavior/thermoregulation/etc)

Question 3

Mammillary bodies

Answer 3

• part of the epithalamus, or parts of the diencephalon that are not thalamus or hypothalamus;
• seen on the ventral surface of the brain.
• Part of the “declarative” memory system and the limbic “emotion” system
• connects the hippocampus via the anterior thalamic n. and