テント切痕
WordNet
- negation of a word or group of words; "he does not speak French"; "she is not going"; "they are not friends"; "not many"; "not much"; "not at all" (同)non
- notch a surface to record something
- a V-shaped indentation; "mandibular notch"
- a small cut (同)nick, snick
- a V-shaped or U-shaped indentation carved or scratched into a surface; "there were four notches in the handle of his revolver"
- cut or make a notch into; "notch the rope"
PrepTutorEJDIC
- 《助動詞,be動詞,時にhaveと共に,また一般動詞にはdoを添えて文の否定を表して》…『でない』,しない / 《語・句・節を否定して》…『でなく』 / 「not+形(副)」は否定される形容詞・副詞の反対の意味を強調することがある / notの意が及ぶ範囲の違いによって,意味解釈に違いが生じることがある / 《不定詞・分詞・動名詞を否定して》…[『し』]『ない』 / 《all, everyなどとともに用いて部分否定を表して》(全部が…なのでは)『ない』,(必ずしも…では)『ない』 / 《any, eitherなどに伴って全面否定を表して》(全然…)『しない』,(どちらも…)『しない』 / 《省略文でnotを含む句・節の代用として》『そうではない』
- (V字形の)刻み目 / 《米》山あい / 《話》段階(STEP),等級(degree) / …‘に'刻み目をつける / 《話》〈競技の得殿など〉'を'記録する,〈勝利〉'を'収める
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/11/25 12:46:32」(JST)
[Wiki en表示]
| Tentorial Incisure |
|
Tentorial incisure seen from above. An easy description is simply the hole created by the tentorium cerebelli
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| Details |
| Part of |
tentorium cerebelli |
| Identifiers |
| TA |
A14.1.01.105 |
| FMA |
74524 |
| Anatomical terms of neuroanatomy
[edit on Wikidata]
|
Tentorial incisure (also known as the tentorial notch or incisura tentorii) refers to the anterior opening between the free edge of the tentorium cerebelli and the clivus for the passage of the brainstem.[1][2]
Structure
The tentorial incisure is located between the tentorial edges and communicates the supratentorial and infratentorial spaces. This area can be divided into three spaces: anterior, middle (lateral to), and posterior to the brainstem. The middle incisural space is close to the midbrain and the upper pons at the level of the pontomesencephalic sulcus. Mesial temporal lobe structures such as the uncus, the parahippocampal gyrus and the hippocampal formation, are also intimately related to the incisura. The principal vascular structures coursing along the middle incisural space are the posterior cerebral artery and the superior cerebellar artery which pass around the brainstem, parallel to the free tentorial edge. The incisura has also a close relationship with the first 6 cranial nerves.[3]
Clinical significance
If Intracranial pressure superior to the tentorium cerebelli is increased, it may force part of the temporal lobe through this notch. This is referred to as a tentorial brain herniation. The consequences are unconsciousness, widening of the pupil of the affected side, and hemiparesis on the opposite side.
References
- ^ "Incisura tentorii: Definition with Incisura tentorii Pictures and Photos". lexic.us. Retrieved 2015-05-14.
- ^ Lang, J. (2001). Skull Base and Related Structures: Atlas of Clinical Anatomy. Schattauer. p. 235. ISBN 9783794519477. Retrieved 2015-05-14.
- ^ Rothon Jr AL. Tentorial incisura. Neurosurgery 2000;47(Suppl. 3):131–53.
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English Journal
- [Epidemiology and classification of arachnoid cysts in children].
- Candela S1, Puerta P2, Alamar M2, Barcik U2, Guillén A2, Muchart J3, García-Fructuoso G2, Ferrer-Rodríguez E2.
- Neurocirugía (Asturias, Spain).Neurocirugia (Astur).2015 Sep-Oct;26(5):234-40. doi: 10.1016/j.neucir.2015.02.007. Epub 2015 Apr 2.
- The prevalence of arachnoid cysts in children is 1-3%. They are more frequent in boys. They can be located intracranially or in the spine. Intracranial cysts are classified as supratentorial, infratentorial, and supra-infratentorial (tentorial notch). Supratentorial are divided into middle cranial f
- PMID 25843209
- Uncommon Cause of Trigeminal Neuralgia: Tentorial Ossification over Trigeminal Notch.
- Bang SW1, Han KR2, Kim SH2, Jeong WH2, Kim EJ2, Choi JW3, Kim C2.
- Case reports in anesthesiology.Case Rep Anesthesiol.2015;2015:819354. doi: 10.1155/2015/819354. Epub 2015 Aug 24.
- Ossification of the tentorium cerebelli over the trigeminal notch is rare, but it may cause compression of the trigeminal nerve, leading to trigeminal neuralgia (TN). We were unable to find any previously reported cases with radiological evaluation, although we did find one case with surgically prov
- PMID 26380124
- Subtemporal approach for distal basilar occlusion for giant aneurysm. Nuances and advantages of the subtemporal approach.
- Lanzino G1, Cannizzaro D, Villa SL.
- Neurosurgical focus.Neurosurg Focus.2015 Jan;38(VideoSuppl1):Video5. doi: 10.3171/2015.V1.FOCUS14536.
- We described the subtemporal approach, which was used for distal basilar artery occlusion in a patient with a symptomatic giant unclippable aneurysm. We discuss issues related to positioning and lumbar drainage. We illustrate the basic steps: identification of the tentorial notch; sharp opening of t
- PMID 25554846
Japanese Journal
- Transverse Sinus-Tentorium Splitting Approach for Pineal Region Tumors : Case Report
- Removal of the roof of the external auditory meatus in approaching the tentorial notch through a low temporal craniotomy. Technical note
Related Links
- Medical Definition of TENTORIAL NOTCH: an oval opening that is bounded by the anterior border of the tentorium cerebelli, that surrounds the midbrain, and that gives passage to the posterior cerebral arteries—called also tentorial ...
- Diplopia may occur due to cranial nerve palsies--the 6th cranial nerve is particularly vulnerable to stretch while the 3rd cranial nerve is at risk because herniation of the medial temporal lobe through the tentorial notch stretches the ...
★リンクテーブル★
[★]
- 英
- tentorial notch (KL)
- 関
- 小脳テント
- 図：M.478 KA.64
- 中脳や橋が小脳テントを通り抜ける部分であり、なおかつ小脳テントの両側が左右に広くなっている部分を指す？
[★]
- 刻み目のある/切りの込みのある
- (動・植)鋸歯状の
[★]
- 関
- tentorium