WordNet

of or relating to the cerebrum or brain; "cerebral hemisphere"; "cerebral activity"
involving intelligence rather than emotions or instinct; "a cerebral approach to the problem"; "cerebral drama" (同)intellectual
a conduit that resembles a bridge but carries water over a valley

PrepTutorEJDIC

大脳の,脳の / 頭脳的な,知的な
送水路,水路橋

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/02/08 07:59:00」(JST)

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The cerebral aqueduct, also known as the aqueductus mesencephali, mesencephalic duct, or the aqueduct of Sylvius is within the mesencephalon (or midbrain), contains cerebrospinal fluid (CSF), and connects the third ventricle in the diencephalon to the fourth ventricle within the region of the mesencephalon and metencephalon, located dorsal to the pons and ventral to the cerebellum.

Structure

Development

The cerebral aqueduct, as other parts of the ventricular system of the brain, develops from the central canal of the neural tube, and it originates from the portion of the neural tube that is present in the developing mesencephalon, hence the name "mesencephalic duct."^[1]

Function

The aqueduct functions to connect the third and fourth ventricles and to ensure the flow of cerebrospinal fluid through these areas.

Clinical significance

Aqueductal stenosis, a narrowing of the cerebral aqueduct, obstructs the flow of CSF and has been associated with non-communicating hydrocephalus. Such narrowing can be congenital, arise via tumor compression, or through cyclical gliosis secondary to an initial partial obstruction.

References

^ Le, Tao; Bhushan, Vikas; Vasan, Neil (2010). First Aid for the USMLE Step 1: 2010 20th Anniversary Edition. USA: The McGraw-Hill Companies, Inc. p. 126. ISBN 978-0-07-163340-6.

External links

Atlas image: n2a3p2 at the University of Michigan Health System

Additional images

Transverse section through mid-brain; number 2 indicates the cerebral aqueduct.
Transverse section of mid-brain at level of inferior colliculi.
Transverse section of mid-brain at level of superior colliculi.
MRI section of mid-brain.
Median sagittal section of brain.
Scheme showing relations of the ventricles to the surface of the brain.
Cerebral aqueduct
Cerebral aqueduct
Cerebral peduncle, optic chasm, cerebral aqueduct. Inferior view. Deep dissection.
Cerebral peduncle, optic chasm, cerebral aqueduct. Inferior view. Deep dissection.
Cerebrum. Inferior view.Deep dissection

UpToDate Contents

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1. 悪性中大脳動脈領域梗塞に対する減圧開頭術 decompressive hemicraniectomy for malignant middle cerebral artery territory infarction
2. 正常圧水頭症 normal pressure hydrocephalus
3. 鎌状赤血球症における脳血管合併症 cerebrovascular complications of sickle cell disease
4. 動脈瘤性くも膜下出血の治療 treatment of aneurysmal subarachnoid hemorrhage
5. 動脈瘤性くも膜下出血の臨床症状および診断 clinical manifestations and diagnosis of aneurysmal subarachnoid hemorrhage

English Journal

Severe second trimester ventriculomegaly revealing obstruction related to pathologies of diencephalic, mesencephalic and rhombencephalic differentiation.

Cagneaux M, Vasiljevic A, Massoud M, Allias F, Massardier J, Gaucherand P, Guibaud L.SourceDépartement d'Imagerie Pédiatrique et Foetale; Centre Pluridisciplinaire de Diagnostic Prénatal.
Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.Ultrasound Obstet Gynecol.2013 Feb 1. doi: 10.1002/uog.12427. [Epub ahead of print]
OBJECTIVES: To identify sonographic features suggestive of an obstructive mechanism in second-trimester fetuses with ventriculomegaly and describe developmental disorders related to pathological differentiation of the diencephalon, mesencephalon, and rhombencephalon which lead to obstruction of CSF
PMID 23371522

Aqueductal flow of cerebrospinal fluid (CSF) and anatomical configuration of the cerebral aqueduct (AC) in patients with communicating hydrocephalus-The trumpet sign.

McCoy MR, Klausner F, Weymayr F, Georg L, Broussalis E, Golaszewski SM, Emich S, Steinbacher J, Al-Shameri AR.SourceDivision of Neuroradiology, Department of Radiology, Paracelsus Medical University Salzburg, Austria Ignaz-Harrer-Strasse 79, A-5020 Salzburg, Austria. Electronic address: Ma.McCoy@salk.at.
European journal of radiology.Eur J Radiol.2013 Jan 11. pii: S0720-048X(12)00577-3. doi: 10.1016/j.ejrad.2012.11.032. [Epub ahead of print]
PURPOSE: We explore the relationship of aqueductal flow of cerebrospinal fluid (CSF) and the changes of the anatomical configuration of the cerebral aqueduct (AC) in patients with communicating hydrocephalus (CH) in a routine MRI setting.METHODS/PATIENTS: We performed a retrospective evaluation of d
PMID 23318053

Spumiform basement membrane aberrations in the microvasculature of the midbrain periaqueductal gray region in hamster: rostro-caudal pathogenesis?

Gerrits PO, Kortekaas R, de Weerd H, Luiten PG, van der Want JJ, Veening JG.SourceDepartment of Neuroscience, Section Anatomy, University Medical Center Groningen, University of Groningen, A. Deusinglaan 1, 9713 AV Groningen, The Netherlands. p.o.gerrits@umcg.nl
Neuroscience.Neuroscience.2013 Jan 3;228:128-38. doi: 10.1016/j.neuroscience.2012.10.021. Epub 2012 Oct 16.
Spumiform basement membrane degeneration (sbmd) is a specific kind of aberration present in the capillaries of the midbrain periaqueductal gray (PAG) region of the senescent hamster. These capillaries, separated by the ependymal cell layer, are bordering the Sylvian cerebral aqueduct. The aqueduct,
PMID 23079630

Japanese Journal

症例糖尿病性の動眼神経麻痺類似の眼瞼下垂を呈した中脳水道近傍の脳梗塞例

金井真,清水洋,設楽香織 [他]
内科 116(1), 157-160, 2015-07
NAID 40020521111

中脳水道を狭窄する結節性病変を伴う水頭症をきたしたサルコイドーシスの１例

杉崎勝教,吉松哲之,瀧川修一 [他],井上聡一,河野宏,大津達也,伊藤和信,三浦隆
日本サルコイドーシス／肉芽腫性疾患学会雑誌 34(1), 69-73, 2014
【要旨】中脳水道を狭窄する結節性病変を伴う水頭症をきたしたサルコイドーシスの1例を報告した．症例は30歳男性．検診異常で発見され肺および眼の病変および鎖骨上リンパ節生検による組織所見からサルコイドーシスと診断された．その後頭痛を訴えるようになりMRI検査で水頭症，脳浮腫と中脳水道を狭窄する結節性病変を認めた．画像所見及び臨床経過から中枢神経サルコイドーシスによる病変と診断し副腎皮質ステロイドホルモ …
NAID 130004957206

内視鏡下第三脳室開窓術を施行したdisproportionately large communicating fourth ventricle (DLCFV) の1例

松村浩平,横須賀公彦,高井洋樹,戸井宏行,松下展久,松原俊二,宇野昌明
脳神経外科ジャーナル 23(12), 987-992, 2014
症例は59歳, 女性. 嘔気, 嘔吐, ふらつき, 複視を主訴に受診した. 頭部MRIにて水頭症を認め, cine MRIにて第四脳室の乱流によるflowがあり, Luschka, Magendie孔の閉塞により水頭症が生じたと考えられた. 内視鏡下に脳室内を観察すると脳室壁に隆起性病変を認めたが, 脳室造影では中脳水道は交通していた. 術中所見よりdisproportionately larg …
NAID 130004842121

Related Pictures

★リンクテーブル★

リンク元	「中脳水道」「aqueduct of cerebrum」「aqueduct of midbrain」
関連記事	「cerebral」「aqueduct」

「中脳水道」

Cerebral aqueduct
	Section through superior colliculus showing path of oculomotor nerve.
	Drawing of a cast of the ventricular cavities, viewed from the side.
Details
Identifiers
Latin	aqueductus mesencephali (cerebri).; aqueductus Sylvii
MeSH	A08.186.211.132.659.822.187
NeuroNames	hier-500
NeuroLex ID	Cerebral aqueduct
	Anatomical terms of neuroanatomy [edit on Wikidata]