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Postsubiculum
| Name: | Postsubiculum |
| Description: | Division of subicular cortex characterized by projections from the anterodorsal thalamic nucleus and to a lesser extent the anteroventral nucleus, bordered ventrally and laterally by the presubiculum and dorsally and medially by the retrosplenial granular a cortex.. The border is characterized by an abrupt change in the cyto- and chemoarchitecture[1] |
| Synonym(s): | Postsubicular cortex |
| Is part of: | subicular complex |
| Super-category: | Regional part of brain |
| PMID: | PMID 1704281 |
| Id: | nlx_144245 |
| Defining criteria: | cyto-architecture, myelo-architecture, connectivity[1] |
| Organism: | rat |
| Link to OWL / RDF: | Download this content as OWL/RDF |
| Defining Criteria: | cyto-architecture, myelo-architecture, connectivity [1] |
| Cyto-architecture defining Criteria: | Characterized by two broad cellular layers separated by a clear lamina dissecans; each cellular layer is divided into 3 layers. The outer layer is characterized by small layer III cells orgnized in rose parallel to the pial surface, covered by a thin layer or larger, darkly stained layer II neurons grouped into clusters or island. The layer II clusters are not found in the presubiculum. At the border with the retrosplenial granular a cortex, the lamina dissecans disappears. [1] |
| Connectivity defining Criteria: | Very weak projection to the anteroventral nucleus, compared to the presubiculum. A strong projection to the lateral dorsal nucleus of the thalamus, compared to the parasubiculum which does not project to this nucleus. Postsubiculum projects to retrosplenial cortex, primarily Rgb, while presubiculum has only a light projection to Rga and none to Rgb. All 3 subdivisions of subicular complex project to entorhinal cortex, but postsubiculum fibers terminate in layers IV-VI. [1] |
| Chemoarchitecture defining Criteria: | Cell islands in layer 2 do not stain for AChE, in contrast to the area surrounding the islands tha is densely stained. In Vogt silver stained material, the post subiculum is characterized by a dense fiber plexus in layer 1a and extremely few fibers in layer II in corast to the even distribution of stained fibers in layer 1-III in the presubiculum. Layer 1 is evenly stained compared to a patches of light and dark staining in the retrosplenial granular a cortex. Layer III is stained in postsubiculum but not in the retrosplenial granular a cortex. [1] |
| Brain regions that send axons into this region: | CA1, subiculum, presubiculum, parasubiculum, entorhinal cortex, perirhinal cortex, retrosplenial cortex, infraradiata cortex, horizontal limb of the diagonal band, Vertical limb of the diagonal band, medial septal nucleus, claustrum, anterodorsal nucleus, anteroventral nucleus, lateral dorsal nucleus, reuniens nucleus, Supramammillary_nucleus, dorsal raphe nucleus, ventral raphe nucleus, Locus ceruleus [1] |
| Brain regions that receive axons from this region: | retrosplenial granular cortex a, retrosplenial granular cortex b, presubiculum, parasubiculum, entorhinal cortex, perirhinal cortex, anterodorsal nucleus, Lateral dorsal nucleus, reuniens nucleus, thalamic reticular nucleus, lateral mammillary nucleus [1] |
Neurons in Postsubiculum
Head direction cell are neurons that can be found in Postsubiculum or its parts.
Inferred outgoing projections for Postsubiculum
The following brain regions receive axons from Postsubiculum: Lateral mammillary nucleus, Mammillary body. The statements about these projections are not made on this page, but rather are made on the pages linked here.
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 van Groen T & Wyss JM (1990) The postsubicular cortex in the rat: characterization of the fourth region of the subicular cortex and its connections. Brain Res 529: 165-77 PubMed
Notes
This page uses this default form:PONS_brain_region
Projection to the retrosplenial cortex organized topographically, with rostral postsubiculum projecting to rostral retrosplenial cortex; projections to the thalamus were organized topographically.
Facts about PostsubiculumRDF feed
| AfferentProjections | CA1 +, Subiculum +, Presubiculum +, Parasubiculum +, Entorhinal cortex +, Perirhinal cortex +, Retrosplenial cortex +, Infraradiata cortex +, Horizontal limb of the diagonal band +, Vertical limb of the diagonal band +, Medial septal nucleus +, Claustrum +, Anterodorsal nucleus +, Anteroventral nucleus +, Lateral dorsal nucleus +, Reuniens nucleus +, Supramammillary nucleus +, Dorsal raphe nucleus +, Ventral raphe nucleus +, and Locus ceruleus + |
| ChemoDefiningCriteria | Cell islands in layer 2 do not stain for A … Cell islands in layer 2 do not stain for AChE, in contrast to the area surrounding the islands tha is densely stained. In Vogt silver stained material, the post subiculum is characterized by a dense fiber plexus in layer 1a and extremely few fibers in layer II in corast to the even distribution of stained fibers in layer 1-III in the presubiculum. Layer 1 is evenly stained compared to a patches of light and dark staining in the retrosplenial granular a cortex. Layer III is stained in postsubiculum but not in the retrosplenial granular a cortex. ot in the retrosplenial granular a cortex. |
| ConnDefiningCriteria | Very weak projection to the anteroventral … Very weak projection to the anteroventral nucleus, compared to the presubiculum. A strong projection to the lateral dorsal nucleus of the thalamus, compared to the parasubiculum which does not project to this nucleus. Postsubiculum projects to retrosplenial cortex, primarily Rgb, while presubiculum has only a light projection to Rga and none to Rgb. All 3 subdivisions of subicular complex project to entorhinal cortex, but postsubiculum fibers terminate in layers IV-VI. ubiculum fibers terminate in layers IV-VI. |
| CurationStatus | graph position temporary + |
| Curator | Maryann Martone + |
| CytoDefiningCriteria | Characterized by two broad cellular layers … Characterized by two broad cellular layers separated by a clear lamina dissecans; each cellular layer is divided into 3 layers. The outer layer is characterized by small layer III cells orgnized in rose parallel to the pial surface, covered by a thin layer or larger, darkly stained layer II neurons grouped into clusters or island. The layer II clusters are not found in the presubiculum. At the border with the retrosplenial granular a cortex, the lamina dissecans disappears. a cortex, the lamina dissecans disappears. |
| DefiningCriteria | cyto-architecture, myelo-architecture, connectivity + |
| Definition | Division of subicular cortex characterized … Division of subicular cortex characterized by projections from the anterodorsal thalamic nucleus and to a lesser extent the anteroventral nucleus, bordered ventrally and laterally by the presubiculum and dorsally and medially by the retrosplenial granular a cortex.. The border is characterized by an abrupt change in the cyto- and chemoarchitecture change in the cyto- and chemoarchitecture |
| EditorialNote | The post subiculum is not recognized by all anatomists. |
| EfferentProjections | Retrosplenial granular cortex a +, Retrosplenial granular cortex b +, Presubiculum +, Parasubiculum +, Entorhinal cortex +, Perirhinal cortex +, Anterodorsal nucleus +, Lateral dorsal nucleus +, Reuniens nucleus +, Thalamic reticular nucleus +, and Lateral mammillary nucleus + |
| Has default formThis property is a special property in this wiki. | PONS brain region + |
| Id | nlx_144245 + |
| Is part of | Subicular complex + |
| Label | Postsubiculum + |
| ModifiedDate | 16 March 2012 + |
| PMID | 1704281 + |
| Page has default formThis property is a special property in this wiki. | PONS brain region + |
| Species | Rat + |
| SuperCategory | Regional part of brain + |
| Synonym | Postsubicular cortex + |