...congestion occurs when the vasodilator nerves become tense or when the vasoconstrictor nerves become paralyzed. There are also other types of congestion, such as inflammatory congestion caused by inflammation, functional congestion caused by hyperfunction, compensatory congestion in one side of a pair of organs when blood perfusion is stopped or reduced in the other side, and paralateral congestion (also called collateral congestion) in the tissues nearby when blood circulation is stopped or ischemia occurs in a certain area. The tissues turn bright red, become warmer, and can be felt pulsating both subjectively and objectively. *Some of the terminology explanations that refer to "functional hyperemia" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…そこで血管拡張神経が緊張したり,血管収縮神経の麻痺などによって充血がおこる。また,炎症による炎症性充血,機能亢進による機能性充血,対をなしている臓器の一側で血液の灌流が停止するか減少した場合に他側におこる代償性充血,ある局所で血行の停止または虚血がおこるとその付近の組織におこる傍側性充血(側副性充血ともいう)などがある。組織は鮮紅色を呈し,温度は高くなり,拍動を自覚的にも他覚的にも感ずるようになる。… ※「機能性充血」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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