外側脊髄視床路
WordNet
- lying away from the median and sagittal plane of a body; "lateral lemniscus"
- situated at or extending to the side; "the lateral branches of a tree"; "shot out sidelong boughs"- Tennyson (同)sidelong
- 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"
- comparative of the adverb `late; "he stayed later than you did"
- coming at a subsequent time or stage; "without ulterior argument"; "the mood posterior to" (同)ulterior, posterior
PrepTutorEJDIC
- 横の,側面の;横からの / (音声が)側音の / 側面,(道路の)側溝(そっこう) / 側音(英語の[1]など)
- 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
- 《補語にのみ用いて》(人などが)(…するのが)『もっと遅い』《+『in』+『名』(do『ing』)》 / (時刻・時期が)『もっと遅い』,もっと後の / 後で,のちほど / (lateの比較級)(定刻・予定時間・他の人(物))より遅れて,遅く
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2017/11/28 08:37:00」(JST)
[Wiki en表示]
| Lateral spinothalamic tract |
|
Lateral spinothalamic tract is labeled in blue at lower right.
|
|
Diagram of the principal fasciculi of the spinal cord.
|
| Details |
| Identifiers |
| Latin |
tractus spinothalamicus lateralis |
Dorlands
/Elsevier |
t_15/12817266 |
| TA |
A14.1.02.225 |
| FMA |
73965 |
| Anatomical terminology
[edit on Wikidata]
|
The lateral spinothalamic tract (or lateral spinothalamic fasciculus), which is a part of the anterolateral system, is a bundle of sensory axons ascending through the white matter of the spinal cord, carrying sensory information to the brain. It carries pain, crude touch and temperature sensory information (protopathic sensation) to the thalamus. It is composed primarily of fast-conducting, sparsely myelinated A delta fibers and slow-conducting, unmyelinated C fibers. These are secondary sensory neurons which have already synapsed with the primary sensory neurons of the peripheral nervous system in the posterior horn of the spinal cord (one of the three grey columns).
Together with the anterior spinothalamic tract, the lateral spinothalamic tract is sometimes termed the secondary sensory fasciculus or spinal lemniscus.
Contents
- 1 Anatomy
- 2 Function
- 3 See also
- 4 References
- 5 External links
Anatomy
The neurons of the lateral spinothalamic tract originate in the spinal ganglia. They project peripheral processes to the tissues in the form of free nerve endings which are sensitive to molecules indicative of cell damage. The central processes enter the spinal cord in an area at the back of the posterior horn known as the posterolateral tract. Here, the processes ascend approximately two levels before synapsing on second-order neurons. These secondary neurons are situated in the posterior horn, specifically in the Rexed laminae regions I, IV, V and VI. Region II is primarily composed of Golgi II interneurons, which are primarily for the modulation of pain, and largely project to secondary neurons in regions I and V. Secondary neurons from regions I and V decussate across the anterior white commissure and ascend in the (now contralateral) lateral spinothalamic tract. These fibers will ascend through the brainstem, including the medulla oblongata, pons and midbrain, as the spinal lemniscus until synapsing in the ventroposteriorlateral (VPL) nucleus of the thalamus. The third order neurons in the thalamus will then project through the internal capsule and corona radiata to various regions of the cortex, primarily the main somatosensory cortex, Brodmann areas 3, 1, and 2.
Function
The fibers of the lateral spinothalamic tract conduct information about temperature and pain.
See also
- Spinothalamic tract
- Anterior spinothalamic tract
References
This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)
External links
|
The spinal cord
|
| General features |
- Cervical enlargement
- Lumbar enlargement
- Conus medullaris
- Filum terminale
- Cauda equina
- Meninges
|
| Grey matter |
| Posterior grey column |
- Marginal nucleus
- Substantia gelatinosa of Rolando
- Nucleus proprius
- Spinal lamina V
- Spinal lamina VI
|
| Lateral grey column |
- Intermediolateral nucleus
- Posterior thoracic nucleus
|
| Anterior grey column |
- Interneuron
- Alpha motor neuron
- Gamma motor neuron
|
| Other |
- Rexed laminae
- Central gelatinous substance
- Gray commissure
- Central canal
- Terminal ventricle
|
|
| White matter |
| Sensory |
| Posterior |
- Posterior column-medial lemniscus pathway:
- Gracile
- Cuneate
|
| Lateral: |
- Spinocerebellar
- Spinothalamic
- Posterolateral
- Spinotectal
|
- Spinoreticular tract
- Spino-olivary tract
|
|
| Motor |
| Lateral |
- Corticospinal
- Extrapyramidal
- Rubrospinal
- Olivospinal
- Raphespinal
|
| Anterior |
- Corticospinal
- Extrapyramidal
- Vestibulospinal
- Reticulospinal
- Tectospinal
|
|
| Both |
- Anterior white commissure
|
|
| External features |
- Ventral
- Anterior median fissure
- Anterolateral sulcus
- Dorsal
- Posterior median sulcus
- Posterolateral sulcus
|
|
Brain and spinal cord: neural tracts and fasciculi
|
Sensory/
ascending |
| PCML |
| 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
|
|
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)
|
| 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: |
|
|
|
| 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
|
| 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
|
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)
|
| 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)
|
|
|
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
- The Brainstem in Emotion: A Review.
- Venkatraman A1, Edlow BL2, Immordino-Yang MH3.
- Frontiers in neuroanatomy.Front Neuroanat.2017 Mar 9;11:15. doi: 10.3389/fnana.2017.00015. eCollection 2017.
- PMID 28337130
- The Medial and Lateral Lemnisci: Anatomically Adjoined But Functionally Distinct Fiber Tracts.
- Rodríguez-Mena R1, Türe U2.
- World neurosurgery.World Neurosurg.2017 Mar;99:241-250. doi: 10.1016/j.wneu.2016.11.095. Epub 2016 Nov 24.
- PMID 27890749
- Palliative CT-Guided Cordotomy for Medically Intractable Pain in Patients with Cancer.
- Shepherd TM1,2, Hoch MJ3, Cohen BA3, Bruno MT3, Fieremans E3,2, Rosen G4, Pacione D5, Mogilner AY5.
- AJNR. American journal of neuroradiology.AJNR Am J Neuroradiol.2017 Feb;38(2):387-390. doi: 10.3174/ajnr.A4981. Epub 2016 Nov 3.
- PMID 27811129
Japanese Journal
- 顔面をふくまない半身の温痛覚障害のみを呈した延髄外側梗塞の67歳男性例
- 柏村 陽子,川井 元晴,小笠原 淳一 [他],古賀 道明,根来 清,神田 隆
- 臨床神経学 49(5), 262-266, 2009-05-01
- NAID 10024899499
- Central nervous control of micturition and urine storage
- SUGAYA Kimio,NISHIJIMA Saori,MIYAZATO Minoru,OGAWA Yoshihide
- 日本平滑筋学会機関誌 41(3), 117-132, 2005-06-00
- … One is the dorsal system and the other is the spinothalamic tract. … Afferents to the PMC ascend in the spinotegmental tract, which run through the lateral funiculus of the spinal cord. … The efferent pathway from the PMC also runs through the lateral funiculus of the spinal cord to inhibit the thoracolumbar sympathetic nucleus and the sacral pudendal nerve nucleus, while promoting the activity of the sacral parasymapathetic nucleus. …
- NAID 110002950124
- 蛇行した椎骨動脈の延髄圧迫により一側下肢の温痛覚低下を呈した1例
- 岩崎 靖,中村 友彦,浜田 健介
- 臨床神経学 : CLINICAL NEUROLOGY 44(3), 176-181, 2004-03-01
- NAID 10016161821
Related Links
- The lateral spinothalamic tract (or lateral spinothalamic fasciculus), which is a part of the Anterolateral system, is a bundle of sensory axons ascending through the white matter of the spinal cord, carrying sensory information to the brain.
- The lateral spinothalamic tract transmits pain and temperature. The anterior spinothalamic tract (or ... The types of sensory information transmitted via the spinothalamic tract are described as affective sensation. This means that the sensation is ...
★リンクテーブル★
[★]
- 英
- lateral spinothalamic tract (B)
- ラ
- tractus spinothalamicus lateralis
- 関
- 上行性伝導路、脊髄視床路
- 温痛覚を伝える。
- 脊髄レベルで対側に入り、外側脊髄視床路を通って上行する。
- 橋レベルでは背外側(やや腹側寄り)を通過する → ワレンベルグ症候群で巻き込まれる
臨床関連
[★]
- 関
- aspect、external、externally、flanking、laterale、lateralis、laterally、outer、outside、profile、side、sided、sidedness
[★]
- 関
- chase、follow up、follow-up、pursue、pursuit、trace
[★]
- 関
- tractus