WordNet

anything that approximates the shape of a column or tower; "the test tube held a column of white powder"; "a tower of dust rose above the horizon"; "a thin pillar of smoke betrayed their campsite" (同)tower, pillar
a vertical glass tube used in column chromatography; a mixture is poured in the top and washed through a stationary substance where components of the mixture are adsorbed selectively to form colored bands (同)chromatography column
(architecture) a tall vertical cylindrical structure standing upright and used to support a structure (同)pillar
a vertical cylindrical structure standing alone and not supporting anything (such as a monument) (同)pillar
an article giving opinions or perspectives (同)editorial, newspaper column
a line of units following one after another
a page or text that is vertically divided; "the newspaper devoted several columns to the subject"; "the bookkeeper used pages that were divided into columns"
a vertical array of numbers or other information; "he added a column of numbers"
any tubular or pillar-like supporting structure in the body
located at or near or behind a part or near the end of a structure
having or resembling columns; having columns of a specified kind (often used as a combining form); "a columned portico"; "trees with columned trunks"; "white-columned houses"

PrepTutorEJDIC

(柱頭・台座のついた)『円柱』 / (…の)『円柱状の物』,柱《+『of』+『名』》 / (新聞などの)『欄』,段;(積み重ねた数字の)縦行;(印刷の)縦段 / コラム(署名した筆者による定期的寄稿欄) / (軍隊の)縦隊;(艦船・飛行機などの)縦列
《名詞の前にのみ用いて》(生物学的に,位置が)後ろの,後部の / (時間・順序が)後の;(…より)後の《+『to』+『名』》(later) / しり(buttocks)
円柱のある

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/12/27 10:03:04」(JST)

wiki en

The posterior column (dorsal column) refers to the area of white matter in the middle to posterior side of the spinal cord. It is made up of the gracile fasciculus and the cuneate fasciculus and itself is part of the posterior funiculus. It is part of an ascending pathway that is important for well-localized fine touch and conscious proprioception called the posterior column-medial lemniscus pathway.^[1]

Joint capsules, tactile and pressure receptors send a signal through the posterior root ganglia up through the gracile fasciculus for lower body sensory impulses and the cuneate fasciculus for upper body impulses. Once the gracile fasciculus reaches the gracile nucleus, and the cuneate fasciculus reaches the cuneate nucleus in the lower medulla oblongata, they begin to cross over as the internal arcuate fibers. Upon reaching the opposite side, they become the medial lemniscus, which is the second part of the posterior column-medial lemniscus pathway.

Lesions in this pathway can diminish or completely abolish tactile sensations and movement or position sense below the lesion.

References

^ Luria, V; Laufer, E (Jul 2, 2007). "Lateral motor column axons execute a ternary trajectory choice between limb and body tissues.". Neural development 2: 13. doi:10.1186/1749-8104-2-13. PMID 17605791.

"The Nervous System: Sensory and Motor Tracts of the Spinal Cord" (PDF). Napa Valley College / Southeast Community College Lincoln, Nebraska. Retrieved 19 May 2013.

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Related Pictures

★リンクテーブル★

リンク元	「後角」「後索」「後柱」
関連記事	「posterior」「column」

「後角」

Posterior column
	Cross-section of the spinal cord; (posterior column is labeled as dorsal column)
	The posterior column is made up of the gracile fasciculus and cuneate fasciculus
	Anatomical terminology

　　[★]

側脳室の後角

関: 脳室、側脳室

脊髄の後角

英: posterior horn (B), dorsal horn (B)
ラ: cornu posterius, cornu dorsale
同: 後柱 posterior column columna posterior
関: 脊髄

N. 158
KH. 91
KL. 665
B. C-25

機能的意義

後索路＞後索-内側毛帯系以外の伝導路の起始細胞
入力間の相互干渉~

　　関連痛の発生機序、ゲートコントロール

下行性抑制路~

　　モルヒネの鎮痛作用

神経解剖

6層構造、I層～VI層

末梢からの入力と層の関係 (2007年度後期生理学授業プリント)

||＞|＞|機械|＞|侵害|冷|温| |I層|||C|Aδ|C|Aδ|C| |II層|||C||C||C| |III層|Aβ|Aδ|||||| |IV層|Aβ|Aδ|||||| |V層|Aβ|||Aδ||Aδ|| |VI層|Aβ||||||| |後索|Aβ|||||||

「後索」

　　[★]

英: posterior column, dorsal column, posterior funiculus, dorsal funiculus
ラ: funiculus posterior, funiculus dorsalis
同: 後柱、脊髄後柱　←後索が一般的
関: dorsal cord、posterior column、楔状束

臨床関連

後索障害

脊髄癆

「後柱」

　　[★]

英: posterior column
同: dorsal column？
関: 後角

「posterior」

　　[★]

adj.

後側の、後方の、後の

関: after、afterward、afterwards、backward、behind、following、late、post、posteriorly、subsequent

「column」

　　[★]

カラム、コラム

[1] Luria, V; Laufer, E (Jul 2, 2007). "Lateral motor column axons execute a ternary trajectory choice between limb and body tissues.". Neural development 2: 13. doi:10.1186/1749-8104-2-13. PMID 17605791.

匿名

検索

案内

案内

posterior column