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
- introduce; "God interposed death"
- be or come between; "An interposing thicket blocked their way"
PrepTutorEJDIC
- 中心,核 / (生物の)細胞核 / 原子核
- (会話や話などへ)〈批評・質問など〉‘を'差しはさむ / (二つの部分・物・場所などの間に)…‘を'置く,挿入する(insert)《+『名』+『between』(『among』)+『名』》 / 〈異議〉‘を'唱える,〈拒否権〉‘を'発動する / 割り込む,邪魔する
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/05/22 14:23:12」(JST)
[Wiki en表示]
| Brain: Interposed nucleus |
| Latin |
nucleus interpositus anterior, nucleus interpositus posterior |
| NeuroLex ID |
nlx_anat_20081242 |
The interposed nucleus is a deep nucleus of the cerebellum and is composed of the globose nuclei and the emboliform nuclei. It is located in the roof (dorsal aspect) of the fourth ventricle, lateral to the fastigial nucleus. It receives its afferent supply from the anterior lobe of the cerebellum and sends output via the superior cerebellar peduncle to the red nucleus.
The interposed nucleus is smaller than the dentate but larger than the fastigial nucleus.
Function [edit]
Functionally, it modulates muscle stretch reflexes of proximal limb muscles.
External links [edit]
- http://www.lib.mcg.edu/edu/eshuphysio/program/section8/8ch6/s8ch6_30.htm
- http://www.neuroanatomy.wisc.edu/cere/text/P5/interp.htm
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Human brain, rhombencephalon, metencephalon: cerebellum (TA 14.1.07, GA 9.788)
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| Surface anatomy |
| Lobes |
- Anterior lobe
- Posterior lobe
- Flocculonodular lobe
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| Medial/lateral |
- Vermis: anterior
- Central lobule
- Culmen
- Lingula
- posterior
- Vallecula of cerebellum
- Hemisphere: anterior
- posterior
- Biventer lobule
- Cerebellar tonsil
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| Grey matter |
| Deep cerebellar nuclei |
- Dentate
- interposed
- Fastigial
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| Cerebellar cortex |
- Molecular layer
- Stellate cell
- Basket cell
- Purkinje cell layer
- Purkinje cell
- Bergmann glia cell = Golgi epithelial cell
- Granule cell layer
- Golgi cell
- Granule cell
- Unipolar brush cell
- Fibers: Mossy fibers
- Climbing fiber
- Parallel fiber
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| White matter |
| Internal |
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| Peduncles |
- Inferior (medulla): Dorsal spinocerebellar tract
- Olivocerebellar tract
- Cuneocerebellar tract
- Juxtarestiform body (Vestibulocerebellar tract)
- Middle (pons): Pontocerebellar fibers
- Superior (midbrain): Ventral spinocerebellar tract
- Dentatothalamic tract
- Trigeminocerebellar fibers
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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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Brain and spinal cord: neural tracts and fasciculi
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Sensory/
ascending |
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PCML
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1°: Pacinian corpuscle/Meissner's corpuscle → Posterior column (Gracile fasciculus/Cuneate fasciculus) → Gracile nucleus/Cuneate nucleus
2°: → sensory decussation/arcuate fibers (Posterior external arcuate fibers, Internal arcuate fibers) → Medial lemniscus/Trigeminal lemniscus → Thalamus (VPL, VPM)
3°: → Posterior limb of internal capsule → Postcentral gyrus
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Anterolateral/
pain
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Fast/lateral
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1° (Free nerve ending → A delta fiber) → 2° (Anterior white commissure → Lateral and Anterior Spinothalamic tract → Spinal lemniscus → VPL of Thalamus) → 3° (Postcentral gyrus) → 4° (Posterior parietal cortex)
2° ( Spinotectal tract → Superior colliculus of Midbrain tectum)
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Slow/medial
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1° (Group C nerve fiber → Spinoreticular tract → Reticular formation) → 2° (MD of Thalamus) → 3° (Cingulate cortex)
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Motor/
descending |
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Pyramidal
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flexion: Primary motor cortex → Posterior limb of internal capsule → Decussation of pyramids → Corticospinal tract (Lateral, Anterior) → Neuromuscular junction
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Extrapyramidal
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flexion: Primary motor cortex → Genu of internal capsule → Corticobulbar tract → Facial motor nucleus → Facial muscles
flexion: Red nucleus → Rubrospinal tract
extension: Vestibulocerebellum → Vestibular nuclei → Vestibulospinal tract
extension: Vestibulocerebellum → Reticular formation → Reticulospinal tract
Midbrain tectum → Tectospinal tract → muscles of neck
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Basal ganglia
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direct: 1° (Motor cortex → Striatum) → 2° (GPi) → 3° (Lenticular fasciculus/Ansa lenticularis → Thalamic fasciculus → VL of Thalamus) → 4° (Thalamocortical radiations → Supplementary motor area) → 5° (Motor cortex)
indirect: 1° (Motor cortex → Striatum) → 2° (GPe) → 3° (Subthalamic fasciculus → Subthalamic nucleus) → 4° (Subthalamic fasciculus → GPi) → 5° (Lenticular fasciculus/Ansa lenticularis → Thalamic fasciculus → VL of Thalamus) → 6° (Thalamocortical radiations → Supplementary motor area) → 7° (Motor cortex)
nigrostriatal pathway: Pars compacta → Striatum
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| Cerebellar |
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Afferent
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Vestibular nucleus → Vestibulocerebellar tract → ICP → Cerebellum → Granule cell
Pontine nuclei → Pontocerebellar fibers → MCP → Deep cerebellar nuclei → Granule cell
Inferior olivary nucleus → Olivocerebellar tract → ICP → Hemisphere → Purkinje cell → Deep cerebellar nuclei
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Efferent
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Dentate nucleus in Lateral hemisphere/pontocerebellum → SCP → Dentatothalamic tract → Thalamus (VL) → Motor cortex
Interposed nucleus in Intermediate hemisphere/spinocerebellum → SCP → Reticular formation, or → Cerebellothalamic tract → Red nucleus → Thalamus (VL) → Motor cortex
Fastigial nucleus in Flocculonodular lobe/vestibulocerebellum → Vestibulocerebellar tract → Vestibular nucleus
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Bidirectional:
Spinocerebellar
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Unc. prop.
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lower limb → 1° (muscle spindles → DRG) → 2° (Posterior thoracic nucleus → Dorsal/posterior spinocerebellar tract → ICP → Cerebellar vermis)
upper limb → 1° (muscle spindles → DRG) → 2° (Accessory cuneate nucleus → Cuneocerebellar tract → ICP → Anterior lobe of cerebellum)
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Reflex arc
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lower limb → 1° (Golgi tendon organ) → 2° (Ventral/anterior spinocerebellar tract→ SCP → Cerebellar vermis)
upper limb → 1° (Golgi tendon organ) → 2° ( Rostral spinocerebellar tract → ICP → Cerebellum)
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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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anat (h/r/t/c/b/l/s/a)/phys (r)/devp/prot/nttr/nttm/ntrp
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noco/auto/cong/tumr, sysi/epon, injr
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UpToDate Contents
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English Journal
- Cortical afferents onto the nucleus Reticularis thalami promote plasticity of low-threshold excitability through GluN2C-NMDARs.
- Fernandez LMJ1, Pellegrini C1, Vantomme G1, Béard E1, Lüthi A2, Astori S3,4.
- Scientific reports.Sci Rep.2017 Sep 25;7(1):12271. doi: 10.1038/s41598-017-12552-8.
- PMID 28947779
- Rubrocerebellar feedback loop isolates the interposed nucleus as an independent processor of corollary discharge information in mice.
- Beitzel CS1, Houck BD2, Lewis SM2, Person AL3.
- The Journal of neuroscience : the official journal of the Society for Neuroscience.J Neurosci.2017 Sep 15. pii: 1093-17. doi: 10.1523/JNEUROSCI.1093-17.2017. [Epub ahead of print]
- PMID 28916520
- No Medium-Term Spinocerebellar Input Plasticity in Deep Cerebellar Nuclear Neurons In Vivo?
- Mogensen H1, Bengtsson F1, Jörntell H2.
- Cerebellum (London, England).Cerebellum.2017 Jun;16(3):638-647. doi: 10.1007/s12311-016-0839-0.
- PMID 28032320
Japanese Journal
- Medullary reticulospinal tract mediating the generalized motor inhibition in cats: Parallel inhibitory mechanisms acting on motoneurons and on interneuronal transmission in reflex pathways
- 高草木 薫,Kohyama J,Matsuyama K,Mori S
- Neuroscience 103(2), 511-527, 2001-03
- … Second, whether the inhibition is mediated by interneurons interposed in known reflex pathways. … Stimuli (three pulses at 10–60 μA and 1–10 ms intervals) delivered to the nucleus reticularis gigantocellularis evoked inhibitory postsynaptic potentials in α-motoneurons (n=147) and γ-motoneurons (n=5) with both early and late latencies. …
- NAID 120003203402
- ニホンハタネズミ (<I>Microtus montebelli</I>) に見られた後臼歯巨大歯形成による頭蓋腔への突出と脳の変化について
- 杉田 昭栄,内海 修,藤原 克彦,新飯田 俊平,福田 勝洋
- Experimental Animals 43(5), 769-772, 1994
- ニホンハタネズミの左右上顎後臼歯のほとんどが巨大歯 (macrodont) を形成し, それら一部は歯牙が歯槽骨を貫き, 一部は歯槽骨ごと頭蓋腔に突出して脳実質に深く侵入した例を報告する。巨大歯が左側第一, 第二, 第三, 右側第二および第三後臼歯であるため脳底部の外側嗅索と視索に挟まれた領域に左右二対の大きな窪みが形成されていた。さらに左側嗅球の大部分が欠損していた。これらのことにより脳組織は著 …
- NAID 130005001197
Related Links
- The interposed nucleus is a deep nucleus of the cerebellum and is composed of the globose nuclei and the emboliform nuclei. It is located in the roof (dorsal aspect) of the fourth ventricle, lateral to the fastigial nucleus. It receives its ...
- interposed nuclei 挿入核 「核」の単数形＝nucleus、複数形＝nuclei - アルクがお届けする進化するオンライン英和・和英辞書データベース。一般的な単語や連語から、イディオム、専門用語、スラングまで幅広く収録。
★リンクテーブル★
[★]
- 英
- interpositus nucleus, interposed nucleus
- ラ
- nucleus interpositus
[★]
- 関
- insert、insertion、intercalation、intromission