Ishii K, Ishii K, Massabuau J C, Dejours P
Laboratoire d'Etude des Régulations Physiologiques, Centre National de la Recherche Scientifique, l'Université Louis Pasteur, Strasbourg, France.
Respir Physiol. 1989 Oct;78(1):73-81. doi: 10.1016/0034-5687(89)90143-6.
Oxygen-sensitive activity was recorded from the branchial nerve of the crayfish Astacus leptodactylus in vitro. After the podobranchial and arthrobranchial nerves branch off to the gill, the branchial nerve terminates in the branchio-cardiac vein wall and its surroundings. When the former 2 branches were cut, irregular spontaneous activity could be recorded from a few fiber preparations innervating the branchio-cardiac vein. The branchio-cardiac vein was superfused or perfused with hypoxic or hyperoxic Ringer solution. Impulse frequency increased in response to hypoxia and decreased in hyperoxia. NaCN and almitrine strongly stimulated nerve activity. Baroreceptor activity was also observed. These response characteristics demonstrate that these receptors are Heymans-type chemoreceptors.
在体外记录了小龙虾细指螯虾鳃神经的氧敏感活性。在 podobranchial 和 arthrobranchial 神经分支至鳃后，鳃神经终止于鳃心静脉壁及其周围。当切断前两个分支时，从一些支配鳃心静脉的纤维制剂中可记录到不规则的自发活动。用低氧或高氧任氏液对鳃心静脉进行表面灌注或灌注。冲动频率在低氧时增加，在高氧时降低。NaCN 和阿米三嗪强烈刺激神经活动。还观察到了压力感受器活动。这些反应特征表明这些受体是海曼斯型化学感受器。
