- 関
- lid、optic tecta、optic tectum、tectorial、tectum
WordNet
- a movable top or cover (hinged or separate) for closing the opening at the top of a box, chest, jar, pan, etc.; "he raised the piano lid"
PrepTutorEJDIC
- 『ふた』 / まぶた(eyelid)
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2014/10/18 21:36:37」(JST)
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This article does not cite any references or sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (October 2013) |
| Brain: Midbrain tectum |
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Deep dissection of brain-stem. Lateral view.
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| Latin |
t. mesencephali |
| Part of |
Midbrain |
| NeuroNames |
hier-448 |
| NeuroLex ID |
birnlex_1032 |
| Dorlands/Elsevier |
Tectum of midbrain |
The tectum (Latin: roof) is a region of the brain, specifically the dorsal part of the mesencephalon (midbrain). This is contrasted with the tegmentum, which refers to the region ventral to the ventricular system. The tectum is responsible for auditory and visual reflexes.
It is derived in embryonic development from the alar plate of the neural tube.
Contents
- 1 Colliculi
- 2 Related terms
- 3 Additional images
- 4 See also
- 5 External links
Colliculi
In adult humans, it only consists of the inferior and the superior colliculi.
- The superior colliculus is involved in preliminary visual processing and control of eye movements. In non-mammalian vertebrates it serves as the main visual area of the brain, functionally analogous to the visual areas of the cerebral cortex in mammals.
- The inferior colliculus is involved in auditory processing. It receives input from various brain stem nuclei and projects to the medial geniculate nucleus of the thalamus, which relays auditory information to the primary auditory cortex.
Both colliculi also have descending projections to the paramedian pontine reticular formation and spinal cord, and thus can be involved in responses to stimuli faster than cortical processing would allow. Collectively the colliculi are referred to as the corpora quadrigemina.
Related terms
The term "tectal plate" (or "quadrigeminal plate") is used to describe the junction of the gray and white matter in the embryo. (ancil-453 at NeuroNames)
Additional images
See also
- List of regions in the human brain
- Tectospinal tract
External links
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Wikimedia Commons has media related to Midbrain tectum. |
- Diagram
- Photo
- Anatomy diagram: 13048.000-3 at Roche Lexicon - illustrated navigator, Elsevier
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Human brain: mesencephalon (midbrain) (TA A14.1.06, GA 9.800)
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Tectum
(Dorsal) |
| Surface |
- Corpora quadrigemina: Inferior colliculi
- Brachium of inferior colliculus
- Superior colliculi
- Brachium of 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
- V: Mesencephalic- GSE
- III: Oculomotor, IV: Trochlear- GVE
- III: Edinger–Westphal
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| Grey: other |
- Periaqueductal gray/Raphe nuclei
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- Ventral tegmental area
- Pedunculopontine nucleus
- Red nucleus
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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
- Decussation of superior cerebellar peduncles
- Interpeduncular fossa
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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 |
| 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° (Spinotectal 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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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
- nttm (nttr)
- ntrp
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- noco / auto / cong / tumr
- sysi / epon
- injr
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UpToDate Contents
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English Journal
- Fronto-tectal white matter connectivity mediates facilitatory effects of non-invasive neurostimulation on visual detection.
- Quentin R, Chanes L, Migliaccio R, Valabrègue R, Valero-Cabré A.SourceUniversité Pierre et Marie Curie, CNRS UMR 7225-INSERM UMRS 975, Centre de Recherche de l'Institut du Cerveau et de la Moelle épinière (ICM), Paris, France.
- NeuroImage.Neuroimage.2013 Nov 15;82:344-54. doi: 10.1016/j.neuroimage.2013.05.083. Epub 2013 May 24.
- The causal ability of pre-target FEF activity to modulate visual detection for perithreshold stimuli has been recently demonstrated in humans by means of non-invasive neurostimulation. Yet in spite of the network-distributed effects of these type of techniques, the white matter (WM) tracts and dista
- PMID 23707586
- Tectal plate gliomas: a review.
- Igboechi C, Vaddiparti A, Sorenson EP, Rozzelle CJ, Tubbs RS, Loukas M.SourceDepartment of Anatomical Sciences, School of Medicine, St. George's University, St. George, Grenada, West Indies.
- Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery.Childs Nerv Syst.2013 Oct;29(10):1827-33. doi: 10.1007/s00381-013-2110-z. Epub 2013 Apr 24.
- INTRODUCTION: Tectal plate gliomas are generally benign neoplastic lesions arising in the brainstem which can, with local extension, obstruct the aqueduct of Sylvius and lead to hydrocephalus.ANATOMY: Diagnosis is based on initial suspicion fostered by the presentation of an obstructive hydrocephalu
- PMID 23612874
- N-methyl-D-aspartate receptors strongly regulate postsynaptic activity levels during optic nerve regeneration.
- Kolls BJ, Meyer RL.SourceDepartment of Developmental and Cell Biology, University of California Irvine, Irvine, California; Brain Injury Translational Research Center, Division of Neurology, Duke University Medical Center, Durham, North Carolina.
- Journal of neuroscience research.J Neurosci Res.2013 Oct;91(10):1263-79. doi: 10.1002/jnr.23246. Epub 2013 Jul 19.
- During development, neuronal activity is used as a cue to guide synaptic rearrangements to refine connections. Many studies, especially in the visual system, have shown that the N-methyl-D-aspartate receptor (NMDAr) plays a key role in mediating activity-dependent refinement through long-term potent
- PMID 23873725
Japanese Journal
- 微小電極アレイを用いた上丘スライス自発活動の培養計測
- 廣田 晋也,井上 康輔,森口 裕之 [他],高山 祐三,神保 泰彦
- 電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and Systems Society 131(7), 1355-1360, 2011-07-01
- … Retino-tectal projection is one of the pathways in visual information processing. …
- NAID 10030526930
- Live Imaging of Radiation-Induced Apoptosis by Yolk Injection of Acridine Orange in the Developing Optic Tectum of Medaka
- Yasuda Takako,Oda Shoji,Ishikawa Yuji [他],WATANABE ASAKA Tomomi,HIDAKA Masayuki,YASUDA Hiroshi,ANZAI Kazunori,MITANI Hiroshi
- Journal of radiation research 50(6), 487-494, 2009-11-16
- … At 8-10 h after irradiation, AO-positive rosette-shaped clusters were obviously distinguished in marginal tectal regions of OT where cells are proliferating intensely. …
- NAID 10025912894
- Ruptured Tectal Arteriovenous Malformation Demonstrated Angiographically After Removal of an Unruptured Occipital Lobe Arteriovenous Malformation
- KOMATSU Fuminari,SAKAMOTO Seisaburou,TAKEMURA Yusuke,NONAKA Masani,OHTA Mika,OSHIRO Shinya,TSUGU Hitoshi,FUKUSHIMA Takeo,INOUE Tooru
- Neurologia medico-chirurgica 49(1), 30-32, 2009-01-15
- … We report a case of ruptured tectal arteriovenous malformation (AVM) that was demonstrated angiographically only after removal of an unruptured occipital AVM. … Postoperative angiography demonstrated disappearance of the occipital AVM, but it also disclosed a small tectal AVM fed by branches from the superior cerebellar artery, which had not been detected on preoperative angiography. …
- NAID 110007028643
Related Links
- 中脳視蓋グリオーマ tectal glioma, tectal plate glioma - 様々な脳腫瘍や脳神経の病気について説明しています。さわむら脳神経クリニックで診療しています。Eメールによる相談や手術治療も受け付けています。
- tec·tum (tĕk′təm) n. pl. tec·ta (-tə) A rooflike structure of the body, especially the dorsal part of the midbrain. [Latin tēctum, roof, from neuter past participle of tegere, to cover; see (s)teg-in Indo-European roots.] tec′tal (-təl) adj. tectal (ˈtɛktəl
Related Pictures
★リンクテーブル★
[★]
視蓋
- 関
- optic tecta、superior colliculi、superior colliculus、tectal、tectum
[★]
蓋、視蓋
- 関
- lid、optic tecta、optic tectum、tectal、tectorial
[★]
- 英
- lid、tectum、tectal、tectorial
- 関
- 視蓋
[★]
視蓋
- 関
- optic tectum、tectal、tectum
[★]
- 関
- lid、tectal、tectum
[★]
- 関
- pretectal area, pretectum
[★]
視蓋前野
- 関
- pretectal、pretectum