de Graaf P J, Ballintijn C M
Respir Physiol. 1987 Aug;69(2):183-94. doi: 10.1016/0034-5687(87)90026-0.
The presence of gill arch proprioceptors in the gills of a teleost, Cyprinus carpio L., is demonstrated and their firing characteristics are analysed. Spontaneous activity of gill arch proprioceptors was recorded from epibranchial ganglia. In paralysed fish the mean discharge rate for 16 receptors ranged from 11.3 impulses X sec-1 (SD 0.3) to 25.7 impulses X sec-1 (SD 0.4). The discharge rate could be influenced by displacement of the main elements of the respiratory pumping system. The receptors showed a tonic response. Their firing frequency was approximately linearly related to gill arch position and, hence, showed a respiratory modulation during ventilation. Gill arch adduction caused a decrease and abduction an increase in discharge rate. In actively breathing fish the mean firing frequency of 30 neurons ranged from 9.9 impulses X sec-1 (SD 0.7) to 40.1 impulses X sec-1 (SD 6.7). These gill arch proprioceptors are located in the cartilaginous strip between the epibranchial and the ceratobranchial of each gill arch and are innervated by the pretrematic branches of the vagal branchial nerves. The role these proprioceptors play in the regulation of gill movements during both feeding and ventilation is discussed.
本文证实了硬骨鱼鲤鱼鳃中存在鳃弓本体感受器，并分析了它们的放电特性。从鳃上神经节记录了鳃弓本体感受器的自发活动。在瘫痪的鱼中，16个感受器的平均放电率范围为11.3次冲动×秒-1（标准差0.3）至25.7次冲动×秒-1（标准差0.4）。放电率可能受呼吸泵系统主要元件位移的影响。感受器表现出紧张性反应。它们的放电频率与鳃弓位置大致呈线性相关，因此在通气过程中表现出呼吸调制。鳃弓内收导致放电率降低，外展导致放电率增加。在主动呼吸的鱼中，30个神经元的平均放电频率范围为9.9次冲动×秒-1（标准差0.7）至40.1次冲动×秒-1（标准差6.7）。这些鳃弓本体感受器位于每个鳃弓的鳃上和角鳃之间的软骨条中，并由迷走鳃神经的前鳃分支支配。讨论了这些本体感受器在摄食和通气过程中对鳃运动调节所起的作用。
