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- 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"
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- 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
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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2017/04/11 05:40:01」(JST)
[Wiki en表示]
Not to be confused with spinotectal tract.
| Tectospinal tract |
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Diagram showing possible connection of long descending fibers from higher centers with the motor cells of the ventral column through association fibers. ("Tectospinal fasciculus" labeled at center right.)
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Diagram of the principal fasciculi of the spinal cord. ("Tectospinal fasciculus" labeled at center right, in red.)
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| Details |
| Identifiers |
| Latin |
Tractus tectospinalis |
| NeuroLex ID |
Tectospinal tract |
Dorlands
/Elsevier |
t_15/12817309 |
| TA |
A14.1.02.211
A14.1.04.112 |
| FMA |
73983 |
| Anatomical terminology
[edit on Wikidata]
|
In humans, the tectospinal tract (also known as colliculospinal tract) is a nerve pathway that coordinates head and eye movements. This neural tract is part of the indirect extrapyramidal tract. To be specific, the tectospinal tract connects the midbrain tectum and cervical regions of the spinal cord.[1]
It is responsible for motor impulses that arise from one side of the midbrain to muscles on the opposite side of the body (Contralateral). The function of the tectospinal tract is to mediate reflex postural movements of the head in response to visual and auditory stimuli.
The portion of the midbrain from where this tract originates is the superior colliculus, which receives afferents from the visual nuclei (primarily the oculomotor nuclei complex), then projects to the contralateral (decussating dorsal to the mesencephalic duct) and ipsilateral portion of the first cervical neuromeres of the spinal cord, the oculomotor and trochlear nuclei in the midbrain and the abducens nucleus in the caudal portion of the pons.
The tract descends to the cervical spinal cord to terminate in Rexed laminae VI, VII, and VIII to coordinate head, neck, and eye movements, primarily in response to visual stimuli.
See also
- Upper motor neuron
- Spinotectal tract
References
- ^ Pocock, Gillian; Richards, Christopher D. (2006). Human physiology : the basis of medicine (3rd ed. ed.). Oxford: Oxford University Press. p. 152. ISBN 978-0-19-856878-0.
External links
- Diagram at etsu.edu
- Overview and diagram at uchicago.edu
- hier-783 at NeuroNames
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The spinal cord
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| General features |
- Cervical enlargement
- Lumbar enlargement
- Conus medullaris
- Filum terminale
- Cauda equina
- Meninges
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| Grey matter |
| Posterior grey column |
- Marginal nucleus
- Substantia gelatinosa of Rolando
- Nucleus proprius
- Spinal lamina V
- Spinal lamina VI
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| Lateral grey column |
- Intermediolateral nucleus
- Posterior thoracic nucleus
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| Anterior grey column |
- Interneuron
- Alpha motor neuron
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| Other |
- Rexed laminae
- Central gelatinous substance
- Gray commissure
- Central canal
- Terminal ventricle
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| White matter |
| Sensory |
| Posterior |
- Posterior column-medial lemniscus pathway:
- Gracile
- Cuneate
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| Lateral: |
- Spinocerebellar
- Spinothalamic
- Posterolateral
- Spinotectal
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- Spinoreticular tract
- Spino-olivary tract
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| Motor |
| Lateral |
- Corticospinal
- Extrapyramidal
- Rubrospinal
- Olivospinal
- Raphespinal
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| Anterior |
- Corticospinal
- Extrapyramidal
- Vestibulospinal
- Reticulospinal
- Tectospinal
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| Both |
- Anterior white commissure
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| External features |
- Ventral
- Anterior median fissure
- Anterolateral sulcus
- Dorsal
- Posterior median sulcus
- Posterolateral sulcus
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Anatomy of the midbrain
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Tectum
(Dorsal) |
| Surface |
- Corpora quadrigemina:
- Inferior colliculus
- Superior colliculus
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| Grey matter |
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| White: Sensory/ascending |
- Spinotectal tract
- Central tegmental tract
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| White: Motor/descending |
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Peduncle
(Ventral) |
| Tegmentum |
| White: Sensory/ascending |
- Lemnisci
- Ascending MLF
- Vestibulo-oculomotor fibers
- Spinothalamic tract
- Anterior trigeminothalamic tract
- Dentatothalamic tract
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| White: Motor/descending |
- Rubrospinal tract
- Rubro-olivary tract
- Descending MLF
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| Grey: cranial nuclei |
- GSA
- Mesencephalic- GSE
- Oculomotor nucleus, Trochlear nucleus- GVE
- Edinger–Westphal nucleus
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| Grey: other |
- Periaqueductal gray
- Raphe nuclei
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- Ventral tegmental area
- Rostromedial tegmental nucleus
- Pedunculopontine nucleus
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- Red nucleus
- Rostral interstitial nucleus of medial longitudinal fasciculus
- Parabrachial area
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- Interpeduncular nucleus
- Midbrain reticular formation
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| Ventricular system |
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| Base |
| White: Motor/descending |
- Cerebral crus: Corticospinal tract
- Corticobulbar tract
- Corticopontine tract/Frontopontine fibers/Temporopontine fibers
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| Grey: Substantia nigra |
- Pars compacta
- Pars reticulata
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| Surface |
- Superior cerebellar peduncle
- Interpeduncular fossa
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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
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
- Convergence of pyramidal and medial brain stem descending pathways onto macaque cervical spinal interneurons.
- Riddle CN1, Baker SN.
- Journal of neurophysiology.J Neurophysiol.2010 May;103(5):2821-32. doi: 10.1152/jn.00491.2009. Epub 2010 Mar 24.
- We investigated the control of spinal interneurons by corticospinal and medial brain stem descending tracts in two macaque monkeys. Stimulating electrodes were implanted in the left pyramidal tract (PT), and the right medial longitudinal fasciculus (MLF), which contains reticulospinal, vestibulospin
- PMID 20457863
- [Clinical diagnosis and therapy of opsoclonus-myoclonus syndrome].
- Xiong H1, Peng J, Zhang YH, Bao XH, Jiang YW, Qin J.
- Zhonghua er ke za zhi = Chinese journal of pediatrics.Zhonghua Er Ke Za Zhi.2008 Aug;46(8):570-3.
- OBJECTIVE: Clinical manifestations of opsoclonus-myoclonus syndrome (OMS) in children were summarized and analyzed and the clinical features and therapeutic approaches to OMS were investigated in order to improve its diagnosis and management.METHODS: Clinical information on features and management o
- PMID 19099827
- The superficial layers of the superior colliculus are cytoarchitectually and myeloarchitectually disorganized in the reelin-deficient mouse, reeler.
- Baba K1, Sakakibara S, Setsu T, Terashima T.
- Brain research.Brain Res.2007 Apr 6;1140:205-15. Epub 2006 Dec 14.
- The causative gene for the reeler mouse is reelin which encodes Reelin protein, an extracellular molecule. In the present study, we have examined the cytoarchitecture, myeloarchitecture, and afferent/efferent systems of the superior colliculus (SC) of the reeler mouse. In the reeler, the laminar str
- PMID 17173877
Japanese Journal
- Projections of the tectospinal tract to the upper cervical spinal cord of the cat : a study with the anterograde tracer Pa-L
- Descending pathways to the spinal cord: II. Quantitative study of the tectospinal tract in 23 mammals
Related Pictures
★リンクテーブル★
[★]
- 英
- descending tract (B)
- 関
- 伝導路、上行性伝導路
下行性伝導路
- 皮質延髄路
- 皮質脊髄路
- 前皮質脊髄路
- 外側皮質脊髄路
- 皮質赤核脊髄路
- 皮質網様体脊髄路
- 視蓋延髄路 視蓋脊髄路
- 前庭脊髄路
- オリーブ脊髄路
外側路と内側路
SP.363
伝導路 (TP.101)
[★]
- 英
- tectospinal tract
- ラ
- tractus tectospinalis
- 関
- 視蓋
[★]
- 関
- chase、follow up、follow-up、pursue、pursuit、trace
[★]
- 関
- tractus