decortication posture

Japanese: decortication posture(英語表記)decorticationposture
decortication posture

…Individual damage to this system is unlikely, but if higher structures between the cerebrum and diencephalon are damaged, the excitation of this system, which is inhibited by these areas, increases, and various forms of muscle tone abnormalities are observed. If the damage is above the red nucleus, the patient assumes a decortication posture with the hands flexed and the feet extended, whereas if the damage is in the upper brainstem below the red nucleus, the patient assumes a decerebrate posture.
[Cerebellar movement disorder]
This is a regulatory system involving the cerebellum, pons, and olivary nucleus, and does not directly control the final common pathway, but indirectly by acting on the regulatory systems of the pyramidal tract system and the brainstem reticular system.

*Some of the terminology that refers to "decortication posture" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…この系のみの単独の損傷は生じにくいが,大脳~間脳間の高位の構造が損傷されると,これらの部分から抑制されているこの系統の興奮が高まり,種々の形の筋緊張異常を呈するようになる。損傷が赤核より上方の場合は,手を屈曲させ足を伸ばす除皮質姿勢decortication postureを,また損傷が赤核より下方の上部脳幹にある場合は除脳姿勢decerebrate postureをとる。
[小脳系の運動障害]
 小脳,橋(きよう),延髄オリーブ核などが関与した調節系で,最終共通経路を直接に支配するのではなく,錐体路系と脳幹網様体系の調節系に対して作用することによって,間接的にコントロールしている。…

※「decortication posture」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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