WordNet
- a brief treatise on a subject of interest; published in the form of a booklet (同)pamphlet
- an extended area of land (同)piece of land, piece of ground, parcel of land, parcel
- a system of body parts that together serve some particular purpose
- a drawing created by superimposing a semitransparent sheet of paper on the original image and copying on it the lines of the original image (同)trace
- the act of drawing a plan or diagram or outline
- the discovery and description of the course of development of something; "the tracing of genealogies"
- located at or near or behind a part or near the end of a structure
PrepTutorEJDIC
- 広大な土地(地域),(土地・海・空などの)広がり《+of+名》 / (器官の)管,(神経の)索
- (おもに宗教・政治などの宣伝用の)小冊子,パンフレット
- 跡を追うこと,追跡;透写,複写 / 〈C〉 / 透写(複写)によってできたもの(地図・図案など),透写図
- 《名詞の前にのみ用いて》(生物学的に,位置が)後ろの,後部の / (時間・順序が)後の;(…より)後の《+『to』+『名』》(later) / しり(buttocks)
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2012/08/12 17:11:46」(JST)
[Wiki en表示]
| Dorsal spinocerebellar tract |
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| Posterior spinocerebellar tract is labeled in blue at right. |
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| Diagram of the principal fasciculi of the spinal cord. (Dorsal spinocerebellar fasciculus visible at center left.) |
| Latin |
tractus spinocerebellaris posterior, tractus spinocerebellaris dorsalis |
| Gray's |
subject #185 761 |
The dorsal spinocerebellar tract (posterior spinocerebellar tract, Flechsig's fasciculus, Flechsig's tract) conveys inconscient proprioceptive information from the body to the cerebellum.[1]
It is part of the somatosensory system and runs in parallel with the ventral spinocerebellar tract. It carries proprioceptive information from neuromuscular spindles and Golgi tendon organs of ipsilateral part of trunk and lower limb. Proprioceptive information is taken to the spinal cord via central processes of dorsal root ganglia (first order neurons). These central processes travel through the dorsal horn where they synapse with second order neurons of Clarke's nucleus. Axon fibers from Clarke's Nucleus convey this proprioceptive information in the spinal cord in the peripheral region of the posteriolateral funiculus ipsilaterally until it reaches the cerebellum, where unconscious proprioceptive information is processed.
This tract involves two neurons and ends up on the same side of the body.
External links
References
- ^ Adel K. Afifi Functional Neuroanatomy pag.51 ISBN 970-10-5504-7
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Anatomy of torso (primarily): the spinal cord (TA 14.1.02, GA 9.749)
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| External, dorsal |
Posterior median sulcus · Posterolateral sulcus
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Grey matter/
Rexed laminae |
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I–VI: Posterior horn
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I: Marginal nucleus · II: Substantia gelatinosa of Rolando · III+IV: Nucleus proprius · Spinal lamina V · Spinal lamina VI
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VII: Lateral horn
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Intermediolateral nucleus · Posterior thoracic nucleus
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VIII–IX: Anterior horn
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Interneuron · Alpha motor neuron (Onuf's nucleus)
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X: Other
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Central gelatinous substance · Gray commissure
Central canal · Terminal ventricle
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| White matter |
somatic/
ascending
(blue) |
Posterior/PCML: touch: Gracile · Cuneate
Lateral: proprioception: Spinocerebellar (Dorsal, Ventral) · pain/temp: Spinothalamic (Lateral, Anterior) · Posterolateral (Lissauer) · Spinotectal
Spinoreticular tract · Spino-olivary tract
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Lateral: Corticospinal (Lateral) · Ep (Rubrospinal, Olivospinal)
Anterior: Corticospinal (Anterior) · Ep (Vestibulospinal, Reticulospinal, Tectospinal)
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both
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Anterior white commissure
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| External, ventral |
Anterior median fissure · Anterolateral sulcus
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| External, general |
Cervical enlargement · Lumbar enlargement · Conus medullaris · Filum terminale · Cauda equina
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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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Human brain: rhombencephalon, myelencephalon: medulla (TA A14.1.04, GA 9.767)
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| Dorsal |
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Surface
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Posterior median sulcus · Posterolateral sulcus · Area postrema · Vagal trigone · Hypoglossal trigone · Medial eminence
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Grey: Cranial nuclei
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afferent: GVA: VII,IX,X: Solitary/tract/Dorsal respiratory group · SVA: Gustatory nucleus · GSA: VIII-v (Lateral, Medial, Inferior)
efferent: GSE: XII · GVE: IX,X,XI: Ambiguus · SVE: X: Dorsal · IX: Inferior salivatory nucleus
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Grey: other
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Gracile nucleus · Cuneate nucleus · Accessory cuneate nucleus
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White: Sensory/ascending
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Sensory decussation · Medial lemniscus · Inferior cerebellar peduncle (Juxtarestiform body) · Ascending dorsal longitudinal fasciculus · MLF, III, IV and VI
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White: Motor/descending
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Descending dorsal longitudinal fasciculus · MLF, III, IV and VI
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| Ventral |
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White: Motor/descending
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Motor decussation · Olivocerebellar tract · Rubro-olivary tract
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Grey matter
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Ventral respiratory group · Arcuate nucleus of medulla · Inferior olivary nucleus · Rostral ventromedial medulla
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Surface
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Anterior median fissure · Anterolateral sulcus · Olive · Pyramid
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Grey: Raphe/
reticular |
Reticular formation (Gigantocellular, Parvocellular, Ventral, Lateral, Paramedian) · Raphe nuclei (Obscurus, Magnus, Pallidus)
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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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Human brain, rhombencephalon, metencephalon: cerebellum (TA 14.1.07, GA 9.788)
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| Surface anatomy |
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Lobes
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Anterior lobe · Posterior lobe (Horizontal fissure) · Flocculonodular lobe (Flocculus, Nodule)
Primary fissure
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Medial/lateral
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Vermis: anterior (Central lobule, Culmen, Lingula) · posterior (Folium, Tuber, Uvula) · Vallecula of cerebellum
Hemisphere: anterior (Alar central lobule) · posterior (Biventer lobule, Cerebellar tonsil)
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| Grey matter |
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Deep cerebellar nuclei
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Dentate · interposed (Emboliform, Globose) · Fastigial
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Cerebellar cortex
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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 |
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Internal
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Arbor vitae
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Peduncles
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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 → 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
- Cerebellar cortical neuron responses evoked from the spinal border cell tract.
- Geborek P, Spanne A, Bengtsson F, Jörntell H.SourceNeural Basis of Sensorimotor Control, Department of Experimental Medical Science, Lund University Lund, Sweden.
- Frontiers in neural circuits.Front Neural Circuits.2013 Oct 8;7:157. doi: 10.3389/fncir.2013.00157.
- Spinocerebellar systems are likely to be crucial for cerebellar hallmark functions such as coordination. However, in terms of cerebellar functional analyses, these are perhaps among the least explored systems. The aim of the present study is to achieve activation of a single component of the spinoce
- PMID 24115921
- Mitochondrial pathophysiology in Friedreich's ataxia.
- González-Cabo P, Palau F.SourceProgram in Rare and Genetic Diseases, Centro de Investigación Príncipe Felipe, Valencia, Spain.
- Journal of neurochemistry.J Neurochem.2013 Aug;126 Suppl 1:53-64. doi: 10.1111/jnc.12303.
- Neurological examination indicates that Friedreich's ataxia corresponds to a mixed sensory and cerebellar ataxia, which affects the proprioceptive pathways. Neuropathology and pathophysiology of Friedreich's ataxia involves the peripheral sensory nerves, dorsal root ganglia, posterior columns, the s
- PMID 23859341
- An autopsy case of sporadic amyotrophic lateral sclerosis associated with the I113T SOD1 mutation.
- Nakamura S, Wate R, Kaneko S, Ito H, Oki M, Tsuge A, Nagashima M, Asayama S, Fujita K, Nakamura M, Maruyama H, Kawakami H, Kusaka H.SourceDepartment of Neurology, Kansai Medical University, Hirakata, Japan.
- Neuropathology : official journal of the Japanese Society of Neuropathology.Neuropathology.2013 Jun 17. doi: 10.1111/neup.12049. [Epub ahead of print]
- A 64-year-old man noticed weakness in his arms and dyspnea upon exertion. Four months later he was admitted to our hospital, where muscle atrophy and hyperactive deep tendon reflexes in the arms were observed upon examination. A needle electromyograph study revealed acute and chronic denervation in
- PMID 23773010
Japanese Journal
- 近位筋優位遺伝性運動感覚ニューロパチー（HMSN-P）の神経病理
- Lateropulsion Due to a Lesion of the Dorsal Spinocerebellar Tract
Related Links
- posterior spinocerebellar tract n. A compact bundle of heavily myelinated fibers that is located at the periphery of the dorsal half of the lateral funiculus of the spinal cord, consists of thick fibers originating in the thoracic nucleus on the ...
- posterior spinocerebellar tract n. A compact bundle of heavily myelinated fibers that is located at the periphery of the dorsal half of the lateral funiculus of the spinal cord, consists of thick fibers originating in the thoracic nucleus on the ...
★リンクテーブル★
[★]
- 英
- posterior spinocerebellar tract, dorsal spinocerebellar tract
- ラ
- tractus spinocerebellaris posterior
- 同
- フレクシッヒ路 Flechsig tract、フレクシッヒ束 Flechsig's fasciculus、背側脊髄小脳路 tractus spinocerebellaris dorsalis
- 関
- 脊髄小脳路。深部感覚。楔状束核小脳路
[★]
- 関
- after、afterward、afterwards、backward、behind、following、late、post、posteriorly、subsequent
[★]
- 関
- chase、follow up、follow-up、pursue、pursuit、trace
[★]
- 関
- tractus