視床網様核
- 関
- reticular thalamic nucleus、TRN
WordNet
- a part of the cell containing DNA and RNA and responsible for growth and reproduction (同)cell_nucleus, karyon
- (astronomy) the center of the head of a comet; consists of small solid particles of ice and frozen gas that vaporizes on approaching the sun to form the coma and tail
- any histologically identifiable mass of neural cell bodies in the brain or spinal cord
- the positively charged dense center of an atom
PrepTutorEJDIC
- 中心,核 / (生物の)細胞核 / 原子核
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/12/30 22:31:58」(JST)
[Wiki en表示]
| Brain: Thalamic reticular nucleus |
Thalamus
|
| Latin |
nucleus reticularis thalami |
| Part of |
Thalamus |
| NeuroNames |
hier-348 |
| NeuroLex ID |
birnlex_1721 |
The thalamic reticular nucleus is part of the ventral thalamus that forms a capsule around the thalamus laterally. However, recent evidence from mice and fish question this statement and define it as dorsal thalamic structure.[1][2] 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.
Contents
- 1 Input and output
- 2 References
- 3 Further readings
- 4 External links
Input and output[edit]
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, instead it modulates the information from other nuclei in the thalamus. Its function is modulatory on signals going through thalamus (and the reticular nucleus).
It has been suggested that the reticular nucleus receives afferent input from the reticular formation[citation needed] and in turn projects to the other thalamic nuclei, regulating the flow of information through these to the cortex. 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.[3]
For discussion of mapping and cross modality pathways see Crabtree 2002.[4]
References[edit]
- ^ Scholpp S, Delogu A, Gilthorpe J, Peukert D, Schindler S, Lumsden A (November 2009). "Her6 regulates the neurogenetic gradient and neuronal identity in the thalamus". Proc. Natl. Acad. Sci. USA 106 (47): 19895–900. doi:10.1073/pnas.0910894106. PMC 2775703. PMID 19903880.
- ^ Vue TY, Bluske K, Alishahi A, et al. (April 2009). "Sonic hedgehog signaling controls thalamic progenitor identity and nuclei specification in mice". J. Neurosci. 29 (14): 4484–97. doi:10.1523/JNEUROSCI.0656-09.2009. PMC 2718849. PMID 19357274.
- ^ Jones E (1975). "Some aspects of the organization of the thalamic reticular complex". J. Comp. Neurol. 162 (3): 285–308. doi:10.1002/cne.901620302. PMID 1150923.
- ^ Crabtree JW, Isaac JT (October 2002). "New intrathalamic pathways allowing modality-related and cross-modality switching in the dorsal thalamus". J. Neurosci. 22 (19): 8754–61. PMID 12351751.
Further readings[edit]
- Hestrin, Shaul (2011). "The strength of electrical synapses". Science 334 (6054): 315–316. doi:10.1126/science.1213894. PMID 22021844. Retrieved 2011-10-22.
- Haas, Julie S.; Baltazar Zavala, Carole E. Landisman (2011). "Activity-dependent long-term depression of electrical synapses". Science 334 (6054): 389–393. doi:10.1126/science.1207502. PMID 22021860. Retrieved 2011-10-22.
External links[edit]
- BrainMaps at UCDavis reticular+nucleus+of+thalamus
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Human brain: diencephalon (TA A14.1.08, GA 9.807)
|
|
| Epithalamus |
| Surface |
- Pineal body
- Habenula
- Habenular trigone
- Habenular commissure
|
|
| Grey matter |
- Pretectal area
- Habenular nuclei
- Subcommissural organ
|
|
|
| Thalamus |
| Surface |
- Stria medullaris of thalamus
- Thalamic reticular nucleus
- Taenia thalami
|
|
Grey matter/
nuclei |
- paired: AN
- Ventral
- Lateral
- Metathalamus
- midline: MD
- Intralaminar
- Midline nuclear group
- Interthalamic adhesion
|
|
| White matter |
- Mammillothalamic fasciculus
- Pallidothalamic tracts
- Ansa lenticularis
- Lenticular fasciculus
- Thalamic fasciculus
- PCML
- Medial lemniscus
- Trigeminal lemniscus
- Spinothalamic tract
- Lateral lemniscus
- Dentatothalamic tract
- Acoustic radiation
- Optic radiation
- Subthalamic fasciculus
- Anterior trigeminothalamic tract
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|
|
| Hypothalamus |
| Surface |
- Median eminence/Tuber cinereum
- Mammillary body
- Infundibulum
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|
| Grey matter |
| Autonomic zones |
- Anterior (parasympathetic/heat loss)
- Posterior (sympathetic/heat conservation)
|
|
| Endocrine |
- posterior pituitary: Paraventricular
- magnocellular
- parvocellular
- Supraoptic
- other: Arcuate (dopamine/GHRH)
- Preoptic (GnRH)
- Suprachiasmatic (melatonin)
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|
| Emotion |
- Lateral
- Ventromedial
- Dorsomedial
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|
|
| White matter |
- afferent
- SN → Medial forebrain bundle
- efferent
- Mammillothalamic fasciculus → AN, Stria terminalis → Amygdala, Dorsal longitudinal fasciculus → SC
|
|
| Pituitary |
- Posterior is diencephalon, but anterior is glandular
|
|
|
| Subthalamus |
- Subthalamic nucleus
- Zona incerta
|
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Ventricular system:
Third ventricle |
- recesses:
- Optic recess
- Infundibular recess
- Suprapineal recess
- Pineal recess
- Hypothalamic sulcus
- Tela chorioidea of third ventricle
- Apertures: Interventricular/Monro
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|
|
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anat (n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp
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noco (m/d/e/h/v/s)/cong/tumr, sysi/epon, injr
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proc, drug (N1A/2AB/C/3/4/7A/B/C/D)
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|
|
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UpToDate Contents
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English Journal
- Distribution and intrinsic membrane properties of basal forebrain GABAergic and parvalbumin neurons in the mouse.
- McKenna JT, Yang C, Franciosi S, Winston S, Abarr KK, Rigby MS, Yanagawa Y, McCarley RW, Brown RE.SourceLaboratory of Neuroscience, VA Boston Healthcare System and Harvard Medical School, Department of Psychiatry, Brockton, Massachusetts, 02301.
- The Journal of comparative neurology.J Comp Neurol.2013 Apr 15;521(6):1225-50. doi: 10.1002/cne.23290.
- The basal forebrain (BF) strongly regulates cortical activation, sleep homeostasis, and attention. Many BF neurons involved in these processes are GABAergic, including a subpopulation of projection neurons containing the calcium-binding protein, parvalbumin (PV). However, technical difficulties in i
- PMID 23254904
- Subcortical auditory structures in the mongolian gerbil: I. Golgi architecture.
- Mylius J, Brosch M, Scheich H, Budinger E.SourceSpecial Laboratory Primate Neurobiology, Leibniz Institute for Neurobiology, D-39118 Magdeburg, Germany.
- The Journal of comparative neurology.J Comp Neurol.2013 Apr 15;521(6):1289-321. doi: 10.1002/cne.23232.
- By means of the Golgi-Cox and Nissl methods we investigated the cyto- and fiberarchitecture as well as the morphology of neurons in the subcortical auditory structures of the Mongolian gerbil (Meriones unguiculatus), a frequently used animal model in auditory neuroscience. We describe the divisions
- PMID 23047461
Japanese Journal
- 視床網様核における聴覚入力と視覚入力の干渉 : 異種感覚間で注意を相互制御する神経機構
- 単一聴覚細胞の内側膝状体から視床網様核への投射様式--視床-大脳皮質連絡における聴覚情報処理機構の多様性
Related Links
- Abstract On the basis of theoretical, anatomical, psychological and physiological considerations, Francis Crick (1984) proposed that, during selective attention, the thalamic reticular nucleus (TRN) controls the internal attentional ...
- The authors show that mice lacking the gene Erbb4 in somatostatin-expressing (SOM) neurons of the thalamic reticular nucleus (TRN) show selective behavioral deficits in tasks involving switching attention between cues ...
Related Pictures
★リンクテーブル★
[★]
視床網様核
- 関
- reticular thalamic nucleus、thalamic reticular nucleus
[★]
視床網様核
- 関
- thalamic reticular nucleus、TRN
[★]
視床網様核ニューロン
[★]
網様核
- 関
- nucleus reticularis
- 同
- 網様核
[★]
- 関
- reticular、reticulata、reticulum
[★]
- 関
- thalami、thalamo、thalamus
[★]
視床
- 関
- thalamic、thalamo、thalamus