除脳硬直状態
- 関
- decerebrate posturing、decerebrate rigidity、decorticate rigidity
WordNet
- express in words; "He said that he wanted to marry her"; "tell me what is bothering you"; "state your opinion"; "state your name" (同)say, tell
- a state of depression or agitation; "he was in such a state you just couldnt reason with him"
- the way something is with respect to its main attributes; "the current state of knowledge"; "his state of health"; "in a weak financial state"
- a politically organized body of people under a single government; "the state has elected a new president"; "African nations"; "students who had come to the nations capitol"; "the countrys largest manufacturer"; "an industrialized land" (同)nation, country, land, commonwealth, res publica, body_politic
- the territory occupied by one of the constituent administrative districts of a nation; "his state is in the deep south" (同)province
- the group of people comprising the government of a sovereign state; "the state has lowered its income tax"
- remove the cerebrum from (a human body)
PrepTutorEJDIC
- 〈C〉(人・物事の)『状態』,ありさま,様子 / 〈C〉《a ~》《話》極度の緊張状態,異常な精神状態 / 〈U〉地位,階級,身分 / 〈C〉〈U〉《しばしばS-》『国家』,国,政府 / 〈C〉《時にS-》(アメリカ・オーストラリアなどの)『州』 / 《the States》《話》『米国』 / 〈U〉威厳;公式;堂々とした様子 / 国家の,国事に関する / 《しばしばS-》《米》州の,州立の / 公式の,儀式用の
- …‘を'『はっきり述べる』,公式に申し立てる / 〈当局が〉…‘を'指定する,決める
- 決まった,規定の;定期の / はっきり述べられた,明言された;公認された
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2015/01/20 08:45:11」(JST)
[Wiki en表示]
For decerebrate response, see abnormal posturing.
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Decerebration is the elimination of cerebral brain function in an animal by removing the cerebrum, cutting across the brain stem, or severing certain arteries in the brain stem.
Decerebration describes the ligation along the neural axis in distinct parts of the brain in experimental animals. Generally lower decerebration (the cut is made above the upper border of the pons), middle decerebration (cut is made through the red nucleus) and upper decerebration (cut is made so the cortical area is removed). As a result the animal abolishes certain reflexes which are integrated in different parts of the brain. Furthermore the reflexes which are functional will be hyperreactive (and therefore very accentuated) due to the removal of inhibiting higher brain centers (e.g. the facilitatory area of the reticular formation will not receive regulating input from cerebellum, basal ganglia and the cortex).
Lower decerebration results in a "Bulbospinal" animal: Reflexes which are integrated within the spinal cord and medulla oblongata are functional, reflexes integrated in midbrain and cortex are absent.
The most obvious accentuation is seen in the tonic labyrinthine reflexes, the otolithic organs mediates input about the gravitational force exerted on the body and the labyrinthine reflex acts on the extensor muscles in order to resist this gravitational force. In an animal where the cortical areas or the midbrain have been "cut off" from the neural axis, this reflex is hyperactive and the animal will maximally extend all four limbs. This phenomenon is known as decerebrate rigidity. In humans true decerebrate rigidty is rare since the damage to the brain centers it might be caused by usually are lethal. However decorticate rigidity can be caused by bleeding in the internal capsule which causes damage to upper motor neurons. The symptoms of decorticate rigidity are flexion in the upper limbs and extension in the lower limbs.
References
- Lange "Review of Medical Physiology", 22nd edition, pp. 202,ff
- Guyton and Hall "Textbook of Medical Physiology" 12th Edition.
UpToDate Contents
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English Journal
- Movement- and behavioral state-dependent activity of pontine reticulospinal neurons.
- Thankachan S, Fuller PM, Lu J.SourceDepartment of Neurology and Division of Sleep Medicine, Beth Israel Deaconess Medical Center & Harvard Medical School, Boston, MA, USA.
- Neuroscience.Neuroscience.2012 Jul 13. [Epub ahead of print]
- Forty-five years ago Shik and colleagues were the first to demonstrate that electrical stimulation of the dorsal pontine reticular formation induced fictive locomotion in decerebrate cats. This supraspinal motor site was subsequently termed the "mesencephalic locomotor region (MLR)". Cholinergic neu
- PMID 22796072
- Discharge patterns in the Lateral Superior Olive of Decerebrate Cats.
- Greene NT, Davis KA.Source1University of Rochester.
- Journal of neurophysiology.J Neurophysiol.2012 Jun 27. [Epub ahead of print]
- Anatomical and pharmacological studies have shown that the lateral superior olive (LSO) receives inputs from a number of sources, and that LSO cells can alter the balance of their own excitatory and inhibitory drive. It is thus likely that the ongoing sound-evoked responses of LSO cells reflect a co
- PMID 22745462
Japanese Journal
- 閉口筋に持続的な自発放電活動を伴う咀嚼筋障害患者の筋電図学的検討 : 運動ニューロンの'bistability'の検討
- TMJ : journal of Japanese Society for Temporomandibular Joint : 日本顎関節学会雑誌 14(3), 286-290, 2002-12-20
- NAID 10010577117
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★リンクテーブル★
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- 関
- aspect、circumstance、circumstantial、condition、context、describe、mention、note、position、province、say、situation、situational、speak、status、tell
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- 関
- decerebration