Thalamic reticular nucleus
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| Brain: Thalamic reticular nucleus | ||
|---|---|---|
| Latin | nucleus reticularis thalami | |
| Part of | Thalamus | |
| NeuroNames | hier-348 | |
| Dorlands/Elsevier | n_11/12583150 | |
The thalamic reticular nucleus is part of the ventral thalamus that forms a capsule around the thalamus laterally. It is separated from the thalamus by the external medullary lamina. Reticular cells are GABAergic, and have discoid dendritic arbors in the plane of the nucleus.
Thalamic Reticular Nucleus is variously abbreviated TRN, RTN, NRT, and RT.
Input and output
The thalamic reticular nucleus receives input from the cerebral cortex and dorsal thalamic nuclei. Most input comes from collaterals of fibers passing through the thalamic reticular nucleus. Primary thalamic reticular nucleus efferent fibers project to dorsal thalamic nuclei, but never to the cerebral cortex. This is the only thalamic nucleus that does not project to the cerebral cortex.The function of the thalamic reticular nucleus is not understood, although it has some role in absence seizures, von Krosigk et al., 1993. There is debate over the presence of distinct sectors within the nucleus that each correspond to a different sensory or cognitive modality.
For original connectivity anatomy see Jones 1975; For discussion of mapping and cross modality pathways see Crabtree 2002.
Additional images
 Thalamus |
External links
- BrainMaps at UCDavis reticular+nucleus+of+thalamus
- Jones E (1975). "Some aspects of the organization of the thalamic reticular complex". J Comp Neurol 162 (3): 285-308. PMID 1150923.
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
