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    Ventral diencephalon

    Description:

    Preferred ID: NLX:84922     Type: term      ID# ILX:0112300     Score: 23782.621

    left ventral diencephalon volume FDE

    Description: left ventral diencephalon gray matter volume

    Preferred ID: ILX:0381421     Type: fde      ID# ILX:0381421     Score: 370.52597

    Diencephalon

    Description: Part of the brain consisting of the paired caudal parts of the prosencephalon from which the Thalamus; Hypothalamus; Epithalamus; and Subthalamus are derived.(MeSH)

    Preferred ID: UBERON:0001894     Type: term      ID# ILX:0103217     Score: 309.0997

    Diencephalon of CIVM postnatal rat brain atlas

    Description: The diencephalon can be segmented in coronal T2-weighted MRI. The rostral border is defined by the emergence of the paraventricular thalamic nucleus, which appears as a bright spot just caudal to the fornix and medial to the stria medullaris. This small area rapidly expands caudally in to a large rectangular region bounded laterally by the darker internal capsulae, dorsally by the ventricles and the ventral hippocampal commissure, and ventrally by a more subtle border with the hypothalamus, which can be arbitrarily estimated as a horizontal line between the medial lemnisci. Further caudally the lateral border is defined by a thin sliver of lateral ventricle and the dark appearing fimbria. The caudal border of the diencephalon with the midbrain is the most difficult part of this segmentation. Moving caudally, the midbrain begins to define the ventral border of the diencephalon just as the substantia nigra (light on T2) comes in to view. Slightly more caudal, at roughly the caudal-most extent of the mammillary bodies, the slightly brighter superior colliculus emerges as the dorsal border of the diencephalon. Still further caudal the dorsal and ventral parts of the midbrain move closer together as the diencephalon disappears. Finally, near the caudal border of the substantia nigra all that remains of the diencephalon is the geniculate nuclei, which are light appearing protrusions from the midbrain in to the hippocampus.

    Preferred ID: NLX:151523     Type: term      ID# ILX:0103218     Score: 190.28778

    Ventral tegmental area

    Description: Unpaired midbrain region situated in the ventromedial portion of the reticular formation. The VTA is medial to the substantia nigra and ventral to the red nucleus, and extends caudally from the posterior hypothalamus in the diencephalon. The VTA contains dopamine neurons that project to various limbic and cortical areas and is a critical component of the brain's reward circuitry.

    Preferred ID: MESH:M0026617     Type: term      ID# ILX:0112351     Score: 176.43268

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