superior cerebellar artery

上小脳動脈

WordNet

1. of or characteristic of high rank or importance; "a superior ruler"
2. one of greater rank or station or quality (同)higher-up, superordinate
3. the head of a religious community
4. (often followed by `to'
5. (sometimes followed by `to'
6. having an orbit farther from the sun than the Earths orbit; "Mars and Jupiter are the closest in of the superior planets"
7. of high or superior quality or performance; "superior wisdom derived from experience"; "superior math students"
8. a major thoroughfare that bears important traffic
9. a blood vessel that carries blood from the heart to the body (同)arteria, arterial blood vessel
10. a town in northwest Wisconsin on Lake Superior across from Duluth
11. relating to or associated with the cerebellum; "cerebellar artery"

PrepTutorEJDIC

1. (程度・質が)『普通(平均)以上に優れた』,優秀な / (地位・階級などが)『上位の』,上級の,目上の / (数量的に)勝る,優勢な / (用動が)偉ぶった,高慢な / 《補語にのみ用いて》(…に)屈しない,動じない《+to+名》 / 《名詞の前にのみ用いて》(動・植物の器官や部分が)上位の,上についている / (地位・階級などが)『上位の人』,上役,上司,先輩 / 『いっそう優れた人』 / 《しばしば S-》修道院長
2. 動脈 / (道路・水路・鉄道などの)勘線,(通信の)主チャンネル
3. スペリオル湖(lake~;北米五大湖中で最北最大のもの)

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2013/11/03 23:45:09」(JST)

wiki en

[Wiki en表示]

Artery: Superior cerebellar artery
The three major arteries of the cerebellum: the SCA, AICA, and PICA.
The arterial circle and arteries of the brain. (Superior cerebellar artery labeled at center right.)
Latin	Arteria cerebelli superior
Gray's	subject #148 580
Supplies	Cerebellum
Source	basilar artery
Vein	Superior cerebellar veins

The superior cerebellar artery (SCA) arises near the termination of the basilar artery.

It passes lateralward, immediately below the oculomotor nerve, which separates it from the posterior cerebral artery, winds around the cerebral peduncle, close to the trochlear nerve, and, arriving at the upper surface of the cerebellum, divides into branches which ramify in the pia mater and anastomose with those of the anterior and posterior inferior cerebellar arteries.

Several branches are given to the pineal body, the anterior medullary velum, and the tela chorioidea of the third ventricle.

Areas Supplied

• Superior half of the cerebellum
• Parts of the midbrain

Pathology

The SCA is frequently the cause of trigeminal neuralgia, where it compresses the trigeminal nerve causing lancinating pain in the distribution of this nerve on the patient's face. However, at autopsy, 50% of people without trigeminal neuralgia will also be noted to have vascular compression of the nerve.

Additional images

See also

• posterior cerebral artery

Notes

• Handbook of Neurosurgery, Greenberg, M.D., Thieme 2006

External links

• SUNY Figs 28:02-07
• Superior+cerebellar+artery at eMedicine Dictionary
• http://neuroangio.org/anatomy-and-variants/superior-cerebellar-artery/
• Roche Lexicon - illustrated navigator, at Elsevier 13048.000-1

The arteries of the base of the brain. Superior cerebellar artery labeled near center. The temporal pole of the cerebrum and a portion of the cerebellar hemisphere have been removed on the right side (left half of diagram). Inferior aspect (viewed from below).

This article incorporates text from a public domain edition of Gray's Anatomy.

UpToDate Contents

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• 1. 後方循環系の脳血管症候群 posterior circulation cerebrovascular syndromes
• 2. 成人における小脳性運動失調の概要 overview of cerebellar ataxia in adults
• 3. 先天性および小児冠動脈異常 congenital and pediatric coronary artery abnormalities
• 4. 頸動脈ステントおよびその合併症 carotid artery stenting and its complications
• 5. 胎児発育遅延：診断 fetal growth restriction diagnosis

English Journal

• [A case of moyamoya disease with a subarachnoid hemorrhage treated with endovascular technique].

• Wada K1, Hattori K, Araki Y, Noda T, Maki H, Oyama H, Kito A, Wakabayashi T.
• No shinkei geka. Neurological surgery.No Shinkei Geka.2014 Nov;42(11):1027-33. doi: 10.11477/mf.1436200026.
• We report a case of a moyamoya disease presenting with subarachonoid hemorrhage(SAH)due to a ruptured aneurysm. A 40-year-old woman presented with sudden onset of headache and vomiting. Computed tomography(CT)showed diffuse thick SAH localized around basal cistern. 3D-CT Angiography(3D-CTA)and digit
• PMID 25351798

• Transfundal stent placement for treatment of complex basilar tip aneurysm: technical note.

• Vasquez C1, Hubbard M1, Jagadeesan BD2, Tummala RP3.
• Journal of neurointerventional surgery.J Neurointerv Surg.2014 Oct 28. pii: neurintsurg-2014-011288.rep. doi: 10.1136/neurintsurg-2014-011288.rep. [Epub ahead of print]
• We describe a case where a complex unruptured basilar tip aneurysm was treated with a unique method of stent-assisted coil embolization. The aneurysm was considered to have a complex anatomy since both the left posterior cerebral artery and left superior cerebellar artery originated from the dome of
• PMID 25352580

• Brainstem arteriovenous malformations: anatomical subtypes, assessment of "occlusion in situ" technique, and microsurgical results.

• Han SJ1, Englot DJ, Kim H, Lawton MT.
• Journal of neurosurgery.J Neurosurg.2014 Oct 24:1-11. [Epub ahead of print]
• OBJECT The surgical management of brainstem arteriovenous malformations (AVMs) might benefit from the definition of anatomical subtypes and refinements of resection techniques. Many brainstem AVMs sit extrinsically on pia mater rather than intrinsically in the parenchyma, allowing treatment by occlu
• PMID 25343188

Japanese Journal

• Surgical Simulation of Cerebral Revascularization Via Skull Base Approaches in the Posterior Circulation Using Three-Dimensional Skull Model With Artificial Brain and Blood Vessels

• MORI Kentaro,YAMAMOTO Takuji,NAKAO Yasuaki,ESAKI Takanori
• Neurologia medico-chirurgica 51(2), 93-96, 2011
• … The mesencephalic segment of superior cerebellar artery (SCA) and the caudal loop of the posterior inferior cerebellar artery (PICA) were made from artificial blood vessels and glued on the brain. … The skull model was drilled to perform the presigmoid transpetrosal approach and then superficial temporal artery-SCA anastomosis was performed under the operating microscope. …
• NAID 130000442536

• Novel Brain Model for Training of Deep Microvascular Anastomosis

• ISHIKAWA Tatsuya,YASUI Nobuyuki,ONO Hidenori
• Neurologia medico-chirurgica = 神経外科 50(8), 627-629, 2010-08-15
• … Rehearsals or training for anastomosis to the insular part of the middle cerebral artery, superior cerebellar artery, posterior cerebral artery, and posterior inferior cerebellar artery can be performed through the craniotomies. … Rehearsals or training for anastomosis of the callosal segment of the anterior cerebral artery can be practiced through this craniotomy. …
• NAID 10026651255

Related Links

• Superior Cerebellar Artery | neuroangio.org

The superior cerebellar artery earns a distinction in being the most constantly identified vessel arising from the basilar, probably because its territory does not lend itself to the same degree of plasticity (with respect to arterial supply ...

• Superior cerebellar artery | Radiology Reference Article ...

The superior cerebellar artery (SCA) arises from the distal basilar artery, just below the posterior cerebral artery (PCA) and typically supplies: whole superior surface of the cerebellar hemispheres down to the great horizontal fissure the ...

Related Pictures

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★リンクテーブル★

リンク元	「小脳」「上小脳動脈」「SCA」
関連記事	「superior」「superio」「cerebellar」

「小脳」

　　[★]

英

cerebellum

• SP. 392,393
• PT.105

発生

• 菱脳→後脳→小脳

解剖

• 小脳は上・中・下小脳脚によって脳幹と結合している

• 上小脳脚

• 主として小脳核から視床および脳幹へ向かう遠心性線維

• 中小脳脚

• 大脳皮質から橋核を介して主として半球外側に向かう求心性線維

• 下小脳脚

• 脳幹および延髄から主として虫部と半球中間部に向かう求心性線維

血管

• 上小脳動脈 superior cerebellar artery SCA
• 前下小脳動脈 anterior inferior cerebellar artery AICA
• 後下小脳動脈 posterior inferior cerebellar artery PICA

機能概要

• 運動のタイミング決定と一つの運動から次の運動への急速な切り替え

機能

• ①運動開始に関与
• ②運動学習に関与
• ③多関節にわたる運動に関与
• ④フィードバックモード、フィードフォワードモードに関与

• フィードバックモード~

熟練した運動で、早く動かさないとき

• フィードフォワードモード~

素早い運動を行うとき。学習を行うとき

入力経路

• 1)体性感覚

• ①楔状核小脳路
• ②背側脊髄小脳路
• ③腹側脊髄小脳路
• 体の固有感覚は上小脳脚や下小脳脚から入り、脊髄小脳に投射

• 2)前庭感覚入力

• 前庭小脳路
• 前庭神経核→下小脳脚→前庭小脳、虫部

• 3)視覚、聴覚入力

• 中脳蓋小脳路
• 上丘(視覚)、下丘(聴覚)→上小脳脚→脊髄小脳路

• 4)大脳からの入力

• 橋小脳路
• 運動野(4,6野)、前頭前野(9,10野)、頭頂葉(5野)→橋核→中小脳脚→脊髄小脳、大脳小脳

• 5)運動の誤差情報の入力　

• オリーブ核小脳路
• 体性感覚情報(脊髄オリーブ核路) |
• 視蓋前野 |→下オリーブ核→下小脳脚、全深部小脳核→全小脳皮質
• 運動情報(赤核) |
• 前頭連合野 |

障害 (KAPLAN USMLE STEP 1 QBOOK p.54)

• motor dysfunction
• truncal ataxia
• intention tremor
• dysdiadochokinesia
• dysmetria
• dysarthria
• hypotonia
• nystagmus

障害

• 小脳性運動失調

• 平衡障害、筋緊張異常、運動障害に分けられる

• 1)片葉小節葉の障害 ... 入力は前庭器官

• 平衡障害

• 体幹失調=姿勢の制御不良
• 失調性歩行
• 注視方向への眼振(注意方向性眼振=注視眼振)

• Tomberg兆候(-)(両側をそろえて開眼して立つ、その後閉眼しても倒れない)

• 2)虫部の障害 ...

• 体幹筋失調による歩行障害(体幹歩行失調, 失調性歩行)

• 酩酊様歩行
• 開脚歩行
• 継ぎ足歩行

• 3)小脳半球の障害

• 四肢の運動失調(協調運動障害)
• ①推尺障害
• ②変換運動障害
• ③運動解離
• ④共同運動不能
• ⑤失調性構音障害

• 筋緊張低下

• 中位核の障害により、皮質脊髄路、赤核脊髄路ニューロンの活動が低下する。

臨床関連

• 小脳出血
• 小脳梗塞

「上小脳動脈」

　　[★]

英

superior cerebellar artery] (KH), SCA

ラ

arteria cerebelli superior

関

大脳動脈、脳底動脈、前下小脳動脈、後下小脳動脈、小脳の動脈、ウィリス動脈輪

• 図：N.132,134 KA.93
• 大脳半球と脳幹を見上げたとき、動眼神経を挟んで上方にあるのが後大脳動脈で、下方にあるのが上小脳動脈である (N.132)

由来

• 脳底動脈

走行

• 大脳脚を取り囲みつつ後方に進み、小脳の上面に至る
• 橋上部で脳底動脈から分岐し、(200%){動眼神経};の(200%){下};を通って外側に向かう (N.134)

分布

• 小脳正面、橋、松果体 (医学辞書)

枝

==臨床関連

• 閉塞：小脳失調、対側感覚障害、難聴

Henry Gray (1825-1861). Anatomy of the Human Body. 1918.

「SCA」

　　[★]

• 脊髄小脳変性症 spinocerebellar degeneration=脊髄小脳失調症 spinocerebellar ataxia
• 鎌状赤血球性貧血 sickle cell anemia
• 上小脳動脈 superior cerebellar artery
• 選択的腹腔動脈造影 selective celiac angiography
• 鎖骨下動脈 subclavian artery
• 心臓突然死 心臓突然死 sudden cardiac arrest 突然の心臓停止

「superior」

　　[★]

• adj.

• 優位な, 優れた, 上の, 上方の, 上位の

関

dominance、dominant、dominantly、epi、epistasis、epistatic、excellent、good、predominately、senior、superio、superiorly、supra

　 　 　 　 　 　 　 　

「superio」

　　[★]

• comb form.

• 上位、上

関

epi、epistasis、epistatic、senior、superior、supra

「cerebellar」

　　[★]

• adj.

• 小脳の、小脳性の

関

cerebelli、cerebellum