Unit page, primary language: EN, subsidiary: LA, interface: EN, work in progress

diencephalon

Identification
Official Latin term diencephalon
Official term diencephalon
Official FMA term
diencephalon
Unit identifier TAH:U5263
Unit type single
Materiality material
Navigation
Link to the unit diencephalon
Links of entity generic: diencephalon
Entity-oriented links Universal page Definition page
External links TA98 FMA PubMed
Partonomic links Level 2: encephalon Short Extended
Level 3: diencephalon
Taxonomic links Level 2: segment of organ Short Extended
Level 3: segment of neuraxis
Subsidiary language with Latin
Non Latin primary language
Notes
The Diencephalon in its classic, columnar view was divided into four dorsoventrally arranged columns separated by ventricular sulci: the Epithalamus, the Dorsal thalamus, the Ventral thalamus and the Hypothalamus. Extensive embryological studies made it clear that the thalamic 'columns' are derived from transversely oriented zones, the Prosomeres (see TE). Currently, the (Caudal) Diencephalon is subdivided into three segmental units, which from caudal to rostral, contain in their alar domains the Pretectum (prosomere 1 or P1), the Epithalamus and the Thalamus (P2) and the Ventral thalamus or Prethalamus (P3). The diencephalic basal plate contains the rostral part of the Substantia nigra-VTA complex and some other nuclei, collectively forming the Diencephalic or Prerubral tegmentum between the Mesencephalon and the Hypothalamus. The entire Hypothalamus or Rostral diencephalon arises from the alar and basal components of the secondary prosencephalon. The Preoptic area is one of the subpallial developmental domains (Puelles L, Harrison M, Paxinos G, Watson C 2013 A developmental ontology for the mammalian brain based on the prosomeric model. Trends Neurosci 36:570-578).
Partonomy
TAH:E10200
human body
TAH:U5062
nervous system SOS
TAH:U5068
central nervous system SOS
TAH:U5257
encephalon SOS
TAH:U5262
prosencephalon SOS
TAH:U5263 diencephalon SOS
TAH:U7511
external morphology of diencephalon XOS
TAH:U5775
prethalamus (pair) UOX
TAH:U5769
thalamus (pair) UOX
TAH:U5765
epithalamus SOX
TAH:U5766
habenula (pair) UOS
TAH:U3543
pineal gland SOX
TAH:U9185
pretectum SOX
TAH:U7512
internal morphology of diencephalon XOS
TAH:U9033
grey matter of prethalamus SOX
TAH:U9104
white matter of prethalamus SOX
TAH:U8637
commissural tracts of epithalamus TOS
TAH:U8638
long tracts of epithalamus TOS
TAH:U8639
epithalamic efferent tracts TOT
TAH:U5813
grey matter of thalamus (pair) UOX
TAH:U5814
anterior nuclei of thalamus (pair) VOU
TAH:U5832
medial nuclei of thalamus (pair) VOU
TAH:U5826
intralaminar nuclei of thalamus (pair) VOU
TAH:U5850
lateral nuclei of thalamus (pair) VOU
TAH:U5838
periventricular nuclei of thalamus (pair) VOU
TAH:U5845
posterior nuclei of thalamus (pair) VOU
TAH:U7521
geniculate bodies (pair) VOU
TAH:U5870
white matter of thalamus (pair) UOX
TAH:U14261
central root of origin in diencephalon und
TAH:U5782
optic tract UOV
TAH:U8505
proper tract of diencephalon und
TAH:U5871
external medullary lamina UOV
TAH:U5872
internal medullary lamina UOV
TAH:U5880
intrathalamic fibre inv
TAH:U5885
periventricular fibre of thalamus inv
TAH:U8307
long tracts of thalamus (pair) VOU
TAH:U9184
grey matter of epithalamus SOX
TAH:U8640
grey matter of pretectum SOX
TAH:U8644
white matter of pretectum SOX
TAH:U8622
prerubral tegmentum SOX
Total
179 children
Taxonomy
Date: 25.06.2025