下小脳脚
WordNet
- of or characteristic of low rank or importance
- one of lesser rank or station or quality
- having an orbit between the sun and the Earths orbit; "Mercury and Venus are inferior planets"
- lower than a given reference point; "inferior alveolar artery"
- of low or inferior quality
- stalk bearing an inflorescence or solitary flower
- the thin process of tissue that attaches a polyp to the body
- a bundle of myelinated neurons joining different parts of the brain (同)cerebral_peduncle
- relating to or associated with the cerebellum; "cerebellar artery"
PrepTutorEJDIC
- (階級・親分・質・程度などが)『下の』,『劣る』, / (位置が)低い,下方の / 目下の者;劣った人
- 花柄 / (クラゲ・エビなどの)柄
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2012/11/25 21:43:26」(JST)
[Wiki en表示]
Brain: Inferior cerebellar peduncle |
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Scheme showing the connections of the several parts of the brain. (Inferior peduncle labeled at bottom right.) |
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Section of the medulla oblongata at about the middle of the olive. (Inferior peduncle labeled at upper right. |
Latin |
pedunculus cerebellaris inferior |
Gray's |
subject #187 775 |
NeuroNames |
hier-778 |
NeuroLex ID |
birnlex_1691 |
The upper part of the posterior district of the medulla oblongata is occupied by the inferior cerebellar peduncle (restiform body), a thick rope-like strand situated between the lower part of the fourth ventricle and the roots of the glossopharyngeal and vagus nerves.
Each cerebellar inferior peduncle connects the medulla spinalis and medulla oblongata with the cerebellum, and comprises the juxtarestiform body and restiform body.
Important fibers running through the inferior cerebellar peduncle include the spinocerebellar tract and axons from the inferior olivary nucleus, among others.
Contents
- 1 Function
- 2 See also
- 3 Additional images
- 4 External links
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Function
The inferior cerebellar peduncle carries many types of input and output fibers that are mainly concerned with integrating proprioceptive sensory input with motor vestibular functions such as balance and posture maintenance.
Proprioceptive information from the body is carried to the cerebellum via the posterior spinocerebellar tract.
This tract passes through the inferior cerebellar peduncle and synapses within the spinocerebellum (also known as the paleocerebellum).
Vestibular information projects onto the vestibulocerebellum (also known as the archicerebellum).
This peduncle also carries information directly from the Purkinje cells to the vestibular nuclei in the dorsal brainstem located at the junction between the pons and medulla oblongata.
See also
- Superior cerebellar peduncles
- Middle cerebellar peduncles
- Cerebral peduncle
- Juxtarestiform body
Additional images
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Upper part of medulla spinalis and hind- and mid-brains; posterior aspect, exposed in situ.
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Superficial dissection of brain-stem. Lateral view.
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Dissection of brain-stem. Lateral view.
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Deep dissection of brain-stem. Lateral view.
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Dissection of brain-stem. Dorsal view.
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Diagram showing the course of the arcuate fibers.
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Dissection showing the course of the cerebrospinal fibers.
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Cross section of lower pons showing part of the inferior cerebellar peduncle (#8) labeled at the upper left.
External links
- Atlas of anatomy at UMich n2a5p2
- Atlas of anatomy at UMich n2a7p4
- Neuroanatomy at UW cere/text/p1/icp.htm
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.
Human brain: rhombencephalon, myelencephalon: medulla (TA A14.1.04, GA 9.767)
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Dorsal |
Surface
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Posterior median sulcus · Posterolateral sulcus · Area postrema · Vagal trigone · Hypoglossal trigone · Medial eminence
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Grey: Cranial nuclei
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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
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Grey: other
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Gracile nucleus · Cuneate nucleus · Accessory cuneate nucleus
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White: Sensory/ascending
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Sensory decussation · Medial lemniscus · Inferior cerebellar peduncle (Juxtarestiform body) · Ascending dorsal longitudinal fasciculus · MLF, III, IV and VI
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White: Motor/descending
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Descending dorsal longitudinal fasciculus · MLF, III, IV and VI
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Ventral |
White: Motor/descending
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Motor decussation · Olivocerebellar tract · Rubro-olivary tract
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Grey matter
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Ventral respiratory group · Arcuate nucleus of medulla · Inferior olivary nucleus · Rostral ventromedial medulla
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Surface
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Anterior median fissure · Anterolateral sulcus · Olive · Pyramid
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Grey: Raphe/
reticular |
Reticular formation (Gigantocellular, Parvocellular, Ventral, Lateral, Paramedian) · Raphe nuclei (Obscurus, Magnus, Pallidus)
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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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Human brain, rhombencephalon, metencephalon: cerebellum (TA 14.1.07, GA 9.788)
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Surface anatomy |
Lobes |
- Anterior lobe
- Posterior lobe
- Flocculonodular lobe
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Medial/lateral |
- Vermis: anterior
- Central lobule
- Culmen
- Lingula
- posterior
- Vallecula of cerebellum
- Hemisphere: anterior
- posterior
- Biventer lobule
- Cerebellar tonsil
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Grey matter |
Deep cerebellar nuclei |
- Dentate
- interposed
- Fastigial
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Cerebellar cortex |
- Molecular layer
- Stellate cell
- Basket cell
- Purkinje cell layer
- Purkinje cell
- Bergmann glia cell = Golgi epithelial cell
- Granule cell layer
- Golgi cell
- Granule cell
- Unipolar brush cell
- Fibers: Mossy fibers
- Climbing fiber
- Parallel fiber
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White matter |
Internal |
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Peduncles |
- Inferior (medulla): Dorsal spinocerebellar tract
- Olivocerebellar tract
- Cuneocerebellar tract
- Juxtarestiform body (Vestibulocerebellar tract)
- Middle (pons): Pontocerebellar fibers
- Superior (midbrain): Ventral spinocerebellar tract
- Dentatothalamic tract
- Trigeminocerebellar fibers
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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
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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 |
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 |
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
- Inferior cerebellar peduncular lesion causes a distinct vestibular syndrome.
- Choi JH1, Seo JD, Choi YR, Kim MJ, Kim HJ, Kim JS, Choi KD.
- European journal of neurology : the official journal of the European Federation of Neurological Societies.Eur J Neurol.2015 Apr 6. doi: 10.1111/ene.12705. [Epub ahead of print]
- BACKGROUND AND PURPOSE: The inferior cerebellar peduncle (ICP) contains various fibres to and from the cerebellum relating to the integration of the proprioceptive and vestibular functions. However, the full clinical features of isolated unilateral ICP lesions have not been defined in humans.METHODS
- PMID 25847359
- Cerebellar white matter pathways are associated with reading skills in children and adolescents.
- Travis KE1, Leitner Y, Feldman HM, Ben-Shachar M.
- Human brain mapping.Hum Brain Mapp.2015 Apr;36(4):1536-53. doi: 10.1002/hbm.22721. Epub 2014 Dec 12.
- Reading is a critical life skill in the modern world. The neural basis of reading incorporates a distributed network of cortical areas and their white matter connections. The cerebellum has also been implicated in reading and reading disabilities. However, little is known about the contribution of c
- PMID 25504986
- Diffusion abnormalities on intraoperative magnetic resonance imaging as an early predictor for the risk of posterior fossa syndrome.
- Avula S1, Kumar R1, Pizer B1, Pettorini B1, Abernethy L1, Garlick D1, Mallucci C1.
- Neuro-oncology.Neuro Oncol.2015 Apr;17(4):614-22. doi: 10.1093/neuonc/nou299. Epub 2014 Oct 15.
- BACKGROUND: Posterior fossa syndrome (PFS) is an important complication of posterior fossa surgery in children. The pathophysiology of this condition remains unclear, but there is evidence implicating surgical injury of the proximal efferent cerebellar pathway (pECP) and the cerebellar vermis to PFS
- PMID 25319997
Japanese Journal
- 拡散テンソル画像(Diffusion Tensor Imaging)を用いた脳幹部神経線維束の描出と脊髄小脳変性症への応用
- 本間 次男,ホンマ ツグオ,Honma Tsuguo
- 山形大学紀要. 医学 : 山形医学 27(1), 31-39, 2009-02-16
- 【背景】MRIの撮像法として最近開発された拡散テンソル画像(Diffusion Tensor Imagmg,以下DTI)は,拡散の異方性を画像化でき、かつ定量的に表現できる.神経線維は拡散異方性が大きく, DTIを用いれば神経線維束を画像化することが可能である. 本研究の目的は,DTIを用いて脳幹部における神経線維束を観察するとともに,脊髄小脳変性症(spinocerebellar degener …
- NAID 110007330734
- Unilateral Hearing Disturbance could be an Isolated Manifestation Prior to Ipsilateral Anterior Inferior Cerebellar Artery Infarction
- Ito Hisashi,Hibino Makoto,Iino Mitsuharu,Matsuura Kosyo,Kamei Tetsumasa
- Internal Medicine 47(8), 795-796, 2008
- … MR imaging revealed fresh infarctions of the right dorsolateral pons and middle cerebellar peduncle localized in the territory of anterior inferior cerebellar artery. … Unilateral hearing disturbance could be an isolated manifestation prior to ipsilateral anterior inferior cerebellar artery infarction. …
- NAID 130000080044
- 佐藤 斎,藤崎 俊之,和田 匡史 [他],窪田 和,泉 修司,高橋 姿
- 耳鼻咽喉科臨床 100(8), 617-622, 2007-08-01
- … Common symptoms are cerebellar dysfunction and signs of CSF flow obstruction.This report describes the case of a 25-year-old female who presented with progressive unilateral sensorineural hearing loss (SNHL) as the first symptom of a medulloblastoma in the right inferior cerebellar peduncle and pons. …
- NAID 10019730617
Related Links
- inferior cerebellar peduncle n. A large bundle of nerve fibers extending up under the lateral recess of the rhomboid fossa, then curving steeply backward into the cerebellum. Also called restiform body. peduncle [pe-dung´k'l] 1. a ...
- FOTOS INFERIOR CEREBELLAR PEDUNCLE Ng k l oct. I inferior colliculus level of attaches to link. Zoology a are paired structures left and assets library inferior undersurface. Cavernous malformations cord with retrograde ...
★リンクテーブル★
[★]
- 英
- inferior cerebellar peduncle (KH)
- ラ
- pedunculus cerebellaris inferior
- 同
- 索状体 restiform body corpus restiforme、髄小脳脚 crus medullocerebellare
- 関
- 小脳
- 延髄と小脳を連絡
- 脊髄・延髄から小脳への入力。
- 下小脳脚を通る入力:体幹、四肢の筋・皮膚からの求心情報は、後脊髄小脳路と楔状束核小脳路を通り、同側性に下小脳脚からはいる。三叉神経支配域から発せられる求心情報は上・中・下の小脳脚より入力される。(CNUR.209)
Henry Gray (1825-1861). Anatomy of the Human Body. 1918.
[★]
- 関
- inferio、inferiorly、infra、lower、recessive、recessively、recessiveness
[★]
- 関
- inferior、inferiorly、infra、lower、sub、underneath
[★]
- 関
- leg、lower extremity、pedunculi、pedunculus
[★]
- 関
- cerebelli、cerebellum