…These cells turn yellowish brown when treated with a fixative containing chromate, and are therefore classified as chromaffin cells. Parasympathetic paraganglions include the carotid body along the glossopharyngeal nerve and the aortic body along the vagus nerve. They act as chemoreceptors, sensing changes in the oxygen and carbon dioxide concentrations of the blood and changes in pH. Parenchymal cells contain large electron-dense granules, but are negative for the chromaffin reaction. … *Some of the terminology that mentions "carotid body" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…これらの細胞群は,クロム酸塩を含む固定液で処理すると黄褐色に着色するので,クロム親和性系に分類される。 副交感性パラガングリオンには,舌咽神経に沿う頸動脈小体carotid bodyと迷走神経に沿う大動脈小体aortic bodyがあり,化学受容器として働き,血液の酸素,二酸化炭素濃度の変化やpHの変動を受容する。実質細胞は電子密度大の顆粒を含むが,クロム親和性反応は陰性である。… ※「carotid body」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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