楔状束核
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
- (of a leaf shape) narrowly triangular, wider at the apex and tapering toward the base (同)wedge-shaped
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）』「2012/12/10 19:48:26」(JST)
[Wiki en表示]
| Brain: Cuneate nucleus |
|
| Dissection of brain-stem. Dorsal view. (Label for "nucleus cuneatus" is on left, third from the bottom.) |
|
| Section of the medulla oblongata at about the middle of the olive. |
| Latin |
nucleus cuneatus |
| Gray's |
subject #187 774 |
| NeuroNames |
hier-764 |
| NeuroLex ID |
birnlex_2640 |
One of the dorsal column nuclei, the cuneate nucleus is a wedge-shaped nucleus in the closed part of the medulla oblongata. It contains cells that give rise to the cuneate tubercle, visible on the posterior aspect of the medulla. It lies laterally to the gracile nucleus and medial to the spinal trigeminal nucleus in the medulla.
|
Contents
- 1 Function
- 2 Inputs
- 3 Pathology
- 4 See also
- 5 Additional images
- 6 External links
|
Function
The cuneate nucleus is part of posterior column-medial lemniscus pathway, carrying fine touch and proprioceptive information from the upper body (above T6, except the face and ear - the information from the face and ear is carried by the primary sensory trigeminal nucleus) to the contralateral thalamus via the medial lemniscus.
Inputs
It receives direct input from the mechanoreceptors of the upper body as well as indirect input from them via the spinal cord. It is also subject to descending control from the central nervous system.
Pathology
It may be affected by vitamin E deficiency exhibiting neuroaxonal swelling.[citation needed]
See also
Additional images
-
-
Dissection of brain-stem. Lateral view.
-
Deep dissection of brain-stem. Lateral view.
-
Superior terminations of the posterior fasciculi of the medulla spinalis.
-
Diagram showing the course of the arcuate fibers.
-
The formatio reticularis of the medulla oblongata, shown by a transverse section passing through the middle of the olive.
-
Scheme showing the course of the fibers of the lemniscus; medial lemniscus in blue, lateral in red.
-
Transverse section passing through the sensory decussation.
-
Deep dissection of cortex and brain-stem.
-
External links
- Brainstem at UWisc 04NGNC
- BrainMaps at UCDavis Cuneate nucleus
- NIF Search - Cuneate Nucleus via the Neuroscience Information Framework
|
Human brain: rhombencephalon, myelencephalon: medulla (TA A14.1.04, GA 9.767)
|
|
| Dorsal |
|
Surface
|
Posterior median sulcus · Posterolateral sulcus · Area postrema · Vagal trigone · Hypoglossal trigone · Medial eminence
|
|
|
Grey: Cranial nuclei
|
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
|
|
|
Grey: other
|
Gracile nucleus · Cuneate nucleus · Accessory cuneate nucleus
|
|
|
White: Sensory/ascending
|
Sensory decussation · Medial lemniscus · Inferior cerebellar peduncle (Juxtarestiform body) · Ascending dorsal longitudinal fasciculus · MLF, III, IV and VI
|
|
|
White: Motor/descending
|
Descending dorsal longitudinal fasciculus · MLF, III, IV and VI
|
|
|
| Ventral |
|
White: Motor/descending
|
Motor decussation · Olivocerebellar tract · Rubro-olivary tract
|
|
|
Grey matter
|
Ventral respiratory group · Arcuate nucleus of medulla · Inferior olivary nucleus · Rostral ventromedial medulla
|
|
|
Surface
|
Anterior median fissure · Anterolateral sulcus · Olive · Pyramid
|
|
|
Grey: Raphe/
reticular |
Reticular formation (Gigantocellular, Parvocellular, Ventral, Lateral, Paramedian) · Raphe nuclei (Obscurus, Magnus, Pallidus)
|
|
|
|
anat (n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp
|
noco (m/d/e/h/v/s)/cong/tumr, sysi/epon, injr
|
proc, drug (N1A/2AB/C/3/4/7A/B/C/D)
|
|
|
|
|
Brain and spinal cord: neural tracts and fasciculi
|
|
Sensory/
ascending |
|
PCML
|
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
|
|
|
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° ( Spinotectal tract → Superior colliculus of Midbrain tectum)
|
|
|
Slow/medial
|
1° (Group C nerve fiber → Spinoreticular tract → Reticular formation) → 2° (MD of Thalamus) → 3° (Cingulate cortex)
|
|
|
|
Motor/
descending |
|
Pyramidal
|
flexion: Primary motor cortex → Posterior limb of internal capsule → Decussation of pyramids → Corticospinal tract (Lateral, Anterior) → Neuromuscular junction
|
|
|
Extrapyramidal
|
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
|
|
|
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)
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
|
|
|
| Cerebellar |
|
Afferent
|
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
|
|
|
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 nucleus
|
|
|
Bidirectional:
Spinocerebellar
|
|
Unc. prop.
|
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)
|
|
|
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)
|
|
|
|
|
|
anat (n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp
|
noco (m/d/e/h/v/s)/cong/tumr, sysi/epon, injr
|
proc, drug (N1A/2AB/C/3/4/7A/B/C/D)
|
|
|
|
anat (h/r/t/c/b/l/s/a)/phys (r)/devp/prot/nttr/nttm/ntrp
|
noco/auto/cong/tumr, sysi/epon, injr
|
|
|
|
|
UpToDate Contents
全文を閲覧するには購読必要です。 To read the full text you will need to subscribe.
English Journal
- Forelimb amputation-induced reorganization in the ventral posterior lateral nucleus (VPL) provides a substrate for large-scale cortical reorganization in rat forepaw barrel subfield (FBS).
- Li CX1, Chappell TD1, Ramshur JT1, Waters RS2.
- Brain research.Brain Res.2014 Jul 21. pii: S0006-8993(14)00951-2. doi: 10.1016/j.brainres.2014.07.022. [Epub ahead of print]
- In this study, we examined the role of the ventral posterior lateral nucleus (VPL) as a possible substrate for large-scale cortical reorganization in the forepaw barrel subfield (FBS) of primary somatosensory cortex (SI) that follows forelimb amputation. Previously, we reported that, 6 weeks after f
- PMID 25058605
- Large-scale reorganization of the somatosensory cortex following spinal cord injuries is due to brainstem plasticity.
- Kambi N1, Halder P1, Rajan R2, Arora V2, Chand P2, Arora M2, Jain N2.
- Nature communications.Nat Commun.2014 Apr 8;5:3602. doi: 10.1038/ncomms4602.
- Adult mammalian brains undergo reorganization following deafferentations due to peripheral nerve, cortical or spinal cord injuries. The largest extent of cortical reorganization is seen in area 3b of the somatosensory cortex of monkeys with chronic transection of the dorsal roots or dorsal columns o
- PMID 24710038
- Neck muscle afferents influence oromotor and cardiorespiratory brainstem neural circuits.
- Edwards IJ1, Lall VK, Paton JF, Yanagawa Y, Szabo G, Deuchars SA, Deuchars J.
- Brain structure & function.Brain Struct Funct.2014 Mar 5. [Epub ahead of print]
- Sensory information arising from the upper neck is important in the reflex control of posture and eye position. It has also been linked to the autonomic control of the cardiovascular and respiratory systems. Whiplash associated disorders (WAD) and cervical dystonia, which involve disturbance to the
- PMID 24595534
Japanese Journal
- 尾崎 勇,鈴木 千恵子
- 臨床神経生理学 : Japanese journal of clinical neurophysiology 36(3), 145-160, 2008-06-01
- NAID 10027055643
- Retrograde infection of precerebellar nuclei neurons by injection of a recombinant adenovirus into the cerebellar cortex of normal and reeler mice
- , ,
- Archives of Histology and Cytology 70(1), 51-62, 2007
- … Retrogradely labeled neurons in the lateral reticular nucleus tended to locate more laterally and be more condensed into a small compartment in the <I>reeler</I> … Retrogradely labeled neurons in the external cuneate nucleus were more dorsally shifted in the <I>reeler</I> …
- NAID 130004780521
- A time course analysis of the changes in neuropeptide Y immunoreactivity of the rat cuneate nucleus following median nerve transection
- TSAI Yi-Ju,LEONG Sok-Man,DAY An-Shiou,WEN Chen-Yuan,SHIEH Jeng-Yung,LUE June-Horng
- Neuroscience research : the official journal of the Japan Neuroscience Society 48(4), 369-377, 2004-04-01
- NAID 10023898305
Related Links
- cu·ne·ate nu·cle·us [TA] the larger Burdach nucleus; one of the three nuclei of the posterior column of the spinal cord; located near the posterior surface of the medulla oblongata at and below the level of the obex, the nucleus receives ...
- cuneate nucleus n. One of the three nuclei of the posterior column of the spinal cord, located near the dorsal surface of the medulla oblongata, receiving posterior root fibers corresponding to the sensory innervation of the arm and hand ...
★リンクテーブル★
[★]
- 英
- cuneate nucleus (KH)
- ラ
- nucleus cuneatus
- 同
- ブルダッハ楔状束核 Burdach cuneate nucleus、Burdach核 ブルダッハ核
- 関
- 薄束、薄束核、楔状束、楔状束核。後索-内側毛帯系
- 延髄、薄束核の外側に存在
- 灰白質の塊
- 上肢の感覚を伝導する
-cuneate nucleus
-nucleus cuneatus
[★]
- 関
- cuneiform、sphenoid、wedge shape、wedge-shaped