WordNet
- a bundle of sensory nerve fibers going to the thalamus (同)fillet
- the main sensory nerve of the face and motor nerve for the muscles of mastication (同)trigeminal_nerve, trigeminus, nervus_trigeminus, fifth_cranial_nerve
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2012/08/05 11:46:33」(JST)
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| Brain: Trigeminal lemniscus |
| Latin |
Lemniscus trigeminalis |
| NeuroNames |
ancil-717 |
The Trigeminal lemniscus is a part of the brain that conveys tactile, pain, and temperature impulses from the skin of the face, the mucous membranes of the nasal and oral cavities, and the eye, as well as proprioceptive information from the facial and masticatory muscles. It is the ascending axonal tract in the brainstem that carries tactile and proprioceptive information from the contralateral principal (chief sensory) nucleus of the trigeminal system to the ventral posterior medial nucleus of the thalamus. This tract is sometimes considered a cephalic division of the medial lemniscus.
Synonym: lemniscus trigeminalis
External links
- Sylvius Neuroanatomical Reference Trigeminal lemniscus
- Trigeminal lemniscus from Online medical Dictionary
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Human brain, rhombencephalon, metencephalon: pons (TA A14.1.05.101–604, GA 9.785)
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Dorsal/
(tegmentum) |
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Surface
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Cerebellopontine angle · Superior medullary velum · Sulcus limitans · Medial eminence · Facial colliculus
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White: Sensory/ascending
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Trapezoid body/VIII · Trigeminal lemniscus (Dorsal trigeminal tract, Ventral trigeminal tract) · Medial lemniscus · Lateral lemniscus
MLF, III, IV and VI: Vestibulo-oculomotor fibers
Anterior trigeminothalamic tract · Central tegmental tract
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White: Motor/descending
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ICP (Vestibulocerebellar tract)
MLF, III, IV and VI: Vestibulospinal tract (Medial vestibulospinal tract, Lateral vestibulospinal tract)
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Grey: Cranial nuclei
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afferent: GSA: Principal V/Spinal V · VIII-c (Dorsal, Anterior)/VIII-v (Superior)
efferent: SVE: Motor V · VII · GSE: VI · GVE: VII: Superior salivary nucleus
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Other grey
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Apneustic center · Pneumotaxic center (Medial parabrachial nucleus) · Lateral parabrachial nucleus · Superior olivary nucleus · Caerulean nucleus
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Ventral/
(base) |
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Grey
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Pontine nuclei
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White: Motor/descending
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Corticospinal tract · Corticobulbar tract · Corticopontine fibers
MCP (Pontocerebellar fibers)
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Surface
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Basilar sulcus
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Other grey: Raphe/
reticular |
Reticular formation (Caudal, Oral, Tegmental, Paramedian) · Raphe nuclei (Median)
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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
- Localization of CGRP receptor components and receptor binding sites in rhesus monkey brainstem: A detailed study using in situ hybridization, immunofluorescence, and autoradiography.
- Eftekhari S1, Gaspar RC2, Roberts R2, Chen TB3, Zeng Z3, Villarreal S2, Edvinsson L1, Salvatore CA4.
- The Journal of comparative neurology.J Comp Neurol.2016 Jan 1;524(1):90-118. doi: 10.1002/cne.23828. Epub 2015 Aug 6.
- Functional imaging studies have revealed that certain brainstem areas are activated during migraine attacks. The neuropeptide calcitonin gene-related peptide (CGRP) is associated with activation of the trigeminovascular system and transmission of nociceptive information and plays a key role in migra
- PMID 26105175
- In vivo magnetic resonance imaging at 11.7 Tesla visualized the effects of neonatal transection of infraorbital nerve upon primary and secondary trigeminal pathways in rats.
- Ooi Y1, Inui-Yamamoto C2, Suzuki T3, Nakadate H3, Nagase Y4, Seiyama A5, Yoshioka Y6, Seki J3.
- Brain research.Brain Res.2014 Sep 4;1579:84-92. doi: 10.1016/j.brainres.2014.07.013. Epub 2014 Jul 16.
- Using 11.7T ultra high-field T2-weighted MRI, the present study aimed to investigate pathological changes of primary and secondary trigeminal pathways following neonatal transection of infraorbital nerve in rats. The trigeminal pathways consist of spinal trigeminal tract, trigeminal sensory nuclear
- PMID 25038563
- Visualization of brain white matter tracts using heavily t2-weighted three-dimensional fluid-attenuated inversion-recovery magnetic resonance imaging.
- Yamazaki M1, Naganawa S1, Bokura K1, Kawai H1.
- Nagoya journal of medical science.Nagoya J Med Sci.2014 Aug;76(3-4):285-91.
- The purpose of this study was to elucidate which white matter (WM)-tracts are visualized on heavily T2-weighted three-dimensional fluid-attenuated inversion-recovery (hT2w-3D-FLAIR) images. Records of seven patients who underwent hT2w-3D-FLAIR and diffusion tensor imaging (DTI) of the head at 3 Tesl
- PMID 25741037
Japanese Journal
- Inhibitory effects of vagal afferent inputs on nociceptive neurons responding to tooth pulp stimulation in the nucleus ventralis posteromedialis of the cat thalamus
- Hirota Tomio,Nishikawa Yasuo
- Journal of Osaka Dental University 37(1), 35-46, 2003-04
- … Of these neurons, 22 TPS and 11 WDR neurons were excited by electrical stimulation of trigeminothalamic tract (TTT) fibers in the trigeminal medial lemniscus. …
- NAID 110001717448
- Effects of conditioning periaqueductal gray stimulation on responses of thalamic nociceptive neurons to tooth pulp stimulation
- Ishii Takaharu,Nishikawa Yasuo
- Journal of Osaka Dental University 33(1), 9-21, 1999-04
- … Responses of these neurons to electrical stimulation of trigeminothalamic tract (TTT) fibers in the trigeminal medial lemniscus were also inhibited following PAG/NRD stimulation. …
- NAID 110001717536
★リンクテーブル★
[★]
- 英
- trigeminal lemniscus (KL)
- ラ
- lemniscus trigeminalis
- 関
- 三叉神経
- 内側毛帯の内側端にある (KL.695)
- 末梢→三叉神経節→橋の中部→三叉神経脊髄路→(下行して)三叉神経脊髄路核→(延髄で対側へ)→三叉神経毛帯を上行→視床のVPM核
[★]
- (Anatomy)a band of fibers, esp. of white nerve fibers in the brain.
- 毛帯
- 関
- lemniscal
[★]
- 関
- nervi trigemini、trigeminal nerve