楔状束核小脳路
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"
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
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2017/08/20 14:20:22」(JST)
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| Posterior external arcuate fibers |
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Diagram showing the course of the arcuate fibers. (Testut.) 1. Medulla oblongata anterior surface. 2. Anterior median fissure. 3. Fourth ventricle. 4. Inferior olivary nucleus, with the accessory olivary nuclei. 5. Gracile nucleus. 6. Cuneate nucleus. 7. Trigeminal. 8. Inferior peduncles, seen from in front. 9. Posterior external arcuate fibers. 10. Anterior external arcuate fibers. 11. Internal arcuate fibers(no it's olivocerebellar tract). 12. Peduncle of inferior olivary nucleus. 13. Nucleus arcuatus. 14. Vagus. 15. Hypoglossal.
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Section of the medulla oblongata at about the middle of the olive. (Arcuate fibers labeled at center right.)
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| Details |
| Identifiers |
| Latin |
fibrae arcuatae externae posteriores |
| NeuroLex ID |
Cuneocerebellar tract |
| Anatomical terminology
[edit on Wikidata]
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The posterior external arcuate fibers (dorsal external arcuate fibers) take origin in the accessory cuneate nucleus ; they pass to the inferior peduncle of the same side.
It carries proprioceptive information from the upper limbs and neck. It is an analogue to the dorsal spinocerebellar tract for the upper limbs.[1] In this context, the "cuneo-" derives from the accessory cuneate nucleus, not the cuneate nucleus. (The two nuclei are related in space, but not in function.)
The term "cuneocerebellar tract" is sometimes used to collectively refer to the posterior external arcuate fibers.[2]
The term "cuneocerebellar tract" is also used to describe an exteroceptive component that take origin in the gracile and cuneate nuclei; they pass to the inferior peduncle of the same side.[3]
It is uncertain whether fibers are continued directly from the gracile and cuneate fasciculi into the inferior peduncle.
Contents
- 1 See also
- 2 References
- 3 Additional images
- 4 External links
See also
References
This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)
- ^ Fix, James D. (2002). Neuroanatomy. Hagerstwon, MD: Lippincott Williams & Wilkins. p. 133. ISBN 0-7817-2829-0.
- ^ Sabyasachi Sircar (2007). Principles of Medical Physiology. Stuttgart: Georg Thieme Verlag. p. 608. ISBN 1-58890-572-1.
- ^ Cooke, J. D. (October 1971). "Origin and termination of cuneocerebellar tract". Experimental Brain Research. 13 (4): 339–358. doi:10.1007/bf00234336. Retrieved 12 April 2015.
Additional images
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Dissection of brain-stem. Lateral view.
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Deep dissection of brain-stem. Lateral view.
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Dissection of brain-stem. Dorsal view.
External links
- hier-793 at NeuroNames - dorsal external arcuate fibers
- hier-800 at NeuroNames - cuneocerebellar tract
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Anatomy of the medulla
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| Grey matter |
| Cranial nuclei |
| afferent: |
- Solitary nucleus
- tract
- Dorsal respiratory group
- Gustatory nucleus
- Vestibular nuclei
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| efferent: |
- Hypoglossal nucleus
- Nucleus ambiguus
- Dorsal nucleus of vagus nerve
- Inferior salivatory nucleus
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| Dorsal |
- Gracile nucleus
- Cuneate nucleus
- Accessory cuneate nucleus
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| Ventral |
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- Ventral respiratory group
- Arcuate nucleus of medulla
- Rostral ventromedial medulla
- Botzinger complex
- Pre-Bötzinger complex
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| White matter |
| Dorsal |
- Sensory
- Sensory decussation
- Medial lemniscus
- Juxtarestiform body
- Ascending dorsal longitudinal fasciculus
- Medial longitudinal fasciculus
- Motor
- Descending dorsal longitudinal fasciculus
- Medial longitudinal fasciculus
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| Ventral |
- Descending tracts
- Olivocerebellar tract
- Rubro-olivary tract
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| Surface |
| Front |
- Pyramid
- decussation
- Anterior median fissure
- Anterolateral sulcus
- Olive
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| Back |
- Posterior median sulcus
- Posterolateral sulcus
- Area postrema
- Vagal trigone
- Hypoglossal trigone
- Medial eminence
- Inferior cerebellar peduncle
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| Grey |
- Reticular formation
- Gigantocellular
- Parvocellular
- Ventral
- Lateral
- Paramedian
- Raphe nuclei
- Perihypoglossal nuclei
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Brain and spinal cord: neural tracts and fasciculi
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Sensory/
ascending |
| PCML |
| 1°: |
- Pacinian corpuscle/Meissner's corpuscle → Posterior column (Gracile fasciculus/Cuneate fasciculus) → Gracile nucleus/Cuneate nucleus
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| 2°: |
- → sensory decussation/arcuate fibers (Posterior external arcuate fibers, Internal arcuate fibers) → Medial lemniscus/Trigeminal lemniscus → Thalamus (VPL, VPM)
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| 3°: |
- → Posterior limb of internal capsule → Postcentral gyrus
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Anterolateral/
pain |
| Fast/lateral |
- 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° (Spinomesencephalic tract → Superior colliculus of Midbrain tectum)
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| Slow/medial |
- 1° (Group C nerve fiber → Spinoreticular tract → Reticular formation) → 2° (MD of Thalamus) → 3° (Cingulate cortex)
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Motor/
descending |
| Pyramidal |
- flexion: Primary motor cortex → Posterior limb of internal capsule → Decussation of pyramids → Corticospinal tract (Lateral, Anterior) → Neuromuscular junction
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| Extrapyramidal |
| flexion: |
- Primary motor cortex → Genu of internal capsule → Corticobulbar tract → Facial motor nucleus → Facial muscles
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| flexion: |
- Red nucleus → Rubrospinal tract
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| extension: |
- Vestibulocerebellum → Vestibular nuclei → Vestibulospinal tract
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| extension: |
- Vestibulocerebellum → Reticular formation → Reticulospinal tract
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- Midbrain tectum → Tectospinal tract → muscles of neck
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| Basal ganglia |
| 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)
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| 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)
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| nigrostriatal pathway: |
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| Cerebellar |
| Afferent |
- Vestibular nuclei → 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 |
- 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 nuclei
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Bidirectional:
Spinocerebellar |
Unconscious
proprioception |
- 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 |
- 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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UpToDate Contents
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English Journal
- Cerebellar and olivary projections of the external and rostral internal cuneate nuclei in the cat.
- Gerrits NM, Voogd J, Nas WS.
- Experimental brain research.Exp Brain Res.1985;57(2):239-55.
- The cerebellar projection of the external cuneate nucleus and the adjoining rostral part of the internal cuneate nucleus were investigated by means of anterograde transport of tritiated leucine. The cuneocerebellar tract terminates as mossy fiber rosettes in the granular layer. The termination area
- PMID 3972028
- Distribution of cerebellar mossy fibers arising from neurons of the raccoon main cuneate nucleus.
- Haring JH, Warren S, Rowinski MJ.
- Brain research.Brain Res.1984 Dec 3;323(1):164-7.
- The present study demonstrates that fibers originating in the raccoon main cuneate nucleus are not segregated in specific cortical regions of target cerebellar folia as reported in studies of the cat cuneocerebellar tract. This observation supports the hypothesis that exteroceptive and proprioceptiv
- PMID 6525506
- Termination in overlapping sagittal zones in cerebellar anterior lobe of mossy and climbing fiber paths activated from dorsal funiculus.
- Ekerot CF, Larson B.
- Experimental brain research.Exp Brain Res.1980 Jan;38(2):163-72.
- The termination patterns in the cerebellar anterior lobe of one mossy fiber path, the exteroceptive component of the cuneocerebellar tract (E-CCT), and one climbing fiber system, the dorsal spino-olivocerebellar paths (DF-SOCPs), which both relay in the main cuneate nucleus, were compared in the cat
- PMID 7358102
Related Links
- cu·ne·o·cer·e·bel·lar tract the nerve fiber system originating from the accessory cuneate nucleus and entering the cerebellum as a component of the restiform body, the larger part of the inferior cerebellar peduncle. Synonym(s): cuneocerebellar fibers ...
- cu·ne·o·cer·e·bel·lar tract the nerve fiber system originating from the accessory cuneate nucleus and entering the cerebellum as a component of the restiform body, the larger part of the inferior cerebellar peduncle. Synonym(s): cuneocerebellar fibers ...
★リンクテーブル★
[★]
- 英
- cuneocerebellar tract
- 関
- 長後索路。深部感覚。後脊髄小脳路
[★]
- 関
- chase、follow up、follow-up、pursue、pursuit、trace
[★]
- 関
- tractus