Gastric phase - Isou

Japanese: 胃相 - いそう

...A lack of intrinsic factor leads to impaired absorption of vitamin _B12 , which causes pernicious anemia. (3) Physiology of gastric acid secretion There are three mechanisms of gastric acid secretion: the cerebrospinal phase, the gastric phase, and the intestinal phase. The cerebrospinal phase (also called the cephalic phase) is the stage in which gastric acid secretion is stimulated through the vagus nerve by stimuli such as taste, smell, chewing, and swallowing from receptors in the tongue, oral cavity, and nasal cavity. ...

From [Gastric juice]

…The secretion of gastric juice is regulated by the autonomic nervous system and humoral regulation by gastrointestinal hormones. Gastric juice is secreted in large quantities when food is ingested, and its secretion is divided into the cephalic phase (also called the head phase), gastric phase, and intestinal phase. The cephalic phase is the secretion of gastric juice that occurs reflexively in response to sight, taste, and smell, and occurs when the vagus nerve (parasympathetic nerve) is stimulated. …

*Some of the terminology explanations that mention the "gastric phase" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…内因子が欠如すると，ビタミンB₁₂の吸収障害が生じ，悪性貧血の原因となる。(3)胃酸分泌の生理　胃酸分泌の機序には，脳相，胃相，腸相がある。　脳相(頭相ともいう)とは，舌，口腔，鼻腔の受容体から，味やにおいや咀嚼，嚥下（えんげ）などの刺激によって，迷走神経を通して胃酸分泌が刺激される段階のことである。…

【胃液】より

…胃液の分泌は，自律神経系による神経性調節と，消化管ホルモンによる体液性調節を受けている。胃液は食物摂取の際に多量に分泌されるが，胃液の分泌は脳相(頭相ともいう)，胃相，腸相に分けられる。脳相は，視覚，味覚，嗅覚（きゆうかく）によって反射的に起こる胃液の分泌であり，迷走神経(副交感神経)が刺激されて起こる。…

※「胃相」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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