diencephalon morphology trait diencephalon size trait caripark 2024-02-29T13:57:05Z Any measurable or observable characteristic related to the physical magnitude of the paired caudal parts of the prosencephalon from which the thalamus, hypothalamus, epithalamus and subthalamus are derived; these regions regulate autonomic, visceral and endocrine function, and process information directed to the cerebral cortex. Trait.ontology ventral diencephalon volume VT:0011083 EFO:0010340