brain sand

WordNet

1. kill by smashing someones skull
2. mental ability; "hes got plenty of brains but no common sense" (同)brainpower, learning_ability, mental capacity, mentality, wit
3. that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord (同)encephalon
4. the brain of certain animals used as meat
5. hit on the head
6. a loose material consisting of grains of rock or coral
7. French writer known for works concerning womens rights and independence (1804-1876) (同)George Sand, Amandine Aurore Lucie Dupin, Baroness Dudevant

PrepTutorEJDIC

1. 『脳』,脳髄 / 《しばしば複数形で》『頭脳』,『知力』 / 《話》秀才,知的指導者 / …‘の'頭を打ち砕く
2. 〈U〉『砂』 / 《複数形で》砂地,砂浜,砂漠 / 《複数形で》時刻,時間 / …‘を'砂(紙やすり)で磨く《+『down』+『名,』+『名』+『down』》 / 〈道路など〉‘に'砂をまく
3. =brassiere,　brassiere

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2018/02/07 15:27:16」(JST)

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Brain sand
Details
Identifiers
Latin	Corpora arenacea
Code	TH H3.08.02.3.00007
TH	H3.08.02.3.00007
Anatomical terminology

Corpora arenacea (or brain sand or acervuli or corpus arenaceum) are calcified structures in the pineal gland and other areas of the brain such as the choroid plexus. Older organisms have numerous corpora arenacea, whose function, if any, is unknown. Concentrations of "brain sand" increase with age, so the pineal gland becomes increasingly visible on X-rays over time, usually by the third or fourth decade. They are sometimes used as anatomical landmarks in radiological examinations.

Chemical analysis shows that they are composed of calcium phosphate, calcium carbonate, magnesium phosphate, and ammonium phosphate. Recently, calcite deposits have been described as well.

Further reading

• Garma-Aviña, A. (2000). "Excretory Plugs from the Choroid Plexus in the Cerebrospinal Fluid of Dogs with Neurological Disease: Possible Role in the Formation of Corpora Arenacea". Journal of Comparative Pathology. 123 (2–3): 146–51. doi:10.1053/jcpa.2000.0405. PMID 11032668. 
• Reiter, Russel J.; Welsh, Marcia G.; Vaughan, Mary K. (1976). "Age-related changes in the intact and sympathetically denervated gerbil pineal gland". American Journal of Anatomy. 146 (4): 427–31. doi:10.1002/aja.1001460405. PMID 941859. 
• Klein, Pavel; Rubinstein, Lucien J (1989). "Benign symptomatic glial cysts of the pineal gland: a report of seven cases and review of the literature". Journal of Neurology, Neurosurgery & Psychiatry. 52 (8): 991–5. doi:10.1136/jnnp.52.8.991. PMC 1031840 . PMID 2677249. 
• Vigh, B; Vigh-Teichmann, I; Aros, B (1989). "Pineal corpora arenacea produced by arachnoid cells in the bat Myotis blythi oxygnathus". Zeitschrift für Mikroskopisch-anatomische Forschung. 103 (1): 36–45. PMID 2756745. 

External links

• Histology image: 14401loa – Histology Learning System at Boston University
• Histology image: 41_03 at the University of Oklahoma Health Sciences Center - "Pineal gland"

UpToDate Contents

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English Journal

• TMEM240 mutations cause spinocerebellar ataxia 21 with mental retardation and severe cognitive impairment.

• Delplanque J1, Devos D2, Huin V3, Genet A4, Sand O5, Moreau C2, Goizet C6, Charles P7, Anheim M8, Monin ML9, Buée L10, Destée A2, Grolez G2, Delmaire C11, Dujardin K2, Dellacherie D12, Brice A13, Stevanin G14, Strubi-Vuillaume I4, Dürr A13, Sablonnière B15.
• Brain : a journal of neurology.Brain.2014 Oct;137(Pt 10):2657-63. doi: 10.1093/brain/awu202. Epub 2014 Jul 28.
• Autosomal dominant cerebellar ataxia corresponds to a clinically and genetically heterogeneous group of neurodegenerative disorders that primarily affect the cerebellum. Here, we report the identification of the causative gene in spinocerebellar ataxia 21, an autosomal-dominant disorder previously m
• PMID 25070513

• Genomic and peptidomic analyses of the neuropeptides from the emerging pest, Drosophila suzukii.

• Audsley N1, Down RE2, Isaac RE3.
• Peptides.Peptides.2014 Aug 23. pii: S0196-9781(14)00249-6. doi: 10.1016/j.peptides.2014.08.006. [Epub ahead of print]
• Drosophila suzukii is a highly polyphagous invasive pest which has been recently introduced into Europe and North America, where it is causing severe economic losses through larval infestations of stone and berry fruits. The peptidome of the selected nervous tissues of adult D. suzukii was investiga
• PMID 25158078

Japanese Journal

• 右蝶形骨の骨内髄膜腫の一例

• 小林 晏,磯野 直史,辻口 幸之助
• Neuro-Oncologyの進歩 20(1), 46-49, 2014
• … The cut surface of resected fragments appeared to be gritty like a sand-paper. …
• NAID 130004648355

• スナヤツメの脳に存在するカルシトニン免疫陽性細胞

• 小林 大樹
• 金沢大学理学部附属能登臨海実験所年次報告 (13), 7-8, 2002-04-30
• NAID 120005619930

Related Pictures

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★リンクテーブル★

リンク元	「脳砂」
関連記事	「sand」「brain」

「脳砂」

　　[★]

英

()

英

brain sand

「sand」

　　[★]

• 砂、砂地、砂漠、砂をまく

関

cristobalite、desert、silica、silicon dioxide

　 　

「brain」

　　[★] 脳