Diencephalon Flashcards
What structures make up Diencephalon
Thalamus
Hypothalamus
Epithalamus
Subthalamus
(Third Ventricle)
Key Functions of Thalamus
Important for all functions (sensory, motor, cognitive, emotions) “Gateway to cortex”
Key Functions of Hypothalamus
Instrumental in Homeostatic function regulation
Key Functions of Subthalamus
Contains Subthalamic Nuclei which plays role in motor control
Key Functions of Epithalamus
Contains Limbic System and Pineal Gland which play role in establishing diurnal rhythms
Relay Nuclei
Receives input from single source, processes information, and sends it to a localized region of sensory, motor, or limbic cortex
Association Nuclei
Receives input from multiple sources, processes information, and sends to multiple cortical association areas
Important Relay Nuclei
- Ventral Posterolateral
- Ventral Posteromedial
- Ventral Anterior and Lateral
- Medial Geniculate Body
- Lateral Geniculate Body
- Anterior Limbic Relay
Ventral Posterolateral Information
Somatosensory relay from contralateral side of body to somatosensory cortex
Ventral Posteromedial Information
Somatosensory relay from contralateral face and then sent to somatosensory cortex
Ventral Anterior and Ventral Lateral Information
Motor Relay - From Basal Nuclei to Motor cortical areas in frontal lobe
Medial Geniculate Body Information
Auditory relay
Lateral Geniculate Body Information
Visual Relay
Anterior Limic Relay Information
Info from Hypothalamus and output to main areas of cortex but mainly cingulate cortex
