STRUCTURE AND FUNCTION OF CUTICULAR SENSILLA OF THE LOBSTER HOMARUS AMERICANUS
STRUCTURE AND FUNCTION OF CUTICULAR SENSILLA OF THE LOBSTER HOMARUS AMERICANUS
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DOI：
10.2307/1548106
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发表时间：
1982
影响因子：
1.1
通讯作者：
C. Derby
中科院分区：
文献类型：
--
作者：
C. Derby
化学感觉神经元和机械感觉神经元支配美洲龙虾头胸部的所有附属器，包括触角、触角、六对口器和五对胸足。并对这些附肢上感器的结构和感觉功能进行了描述。腹足类和颚足类上的感受器可从形态学和生理学上进行分类。光滑刚毛和鳞状刚毛是行走腿上的成排和成簇毛发中的主要刚毛类型;它们也存在于上颌骨上，并且在破碎机和捕获爪上较少。锯齿状刚毛常见于上颚足和第三和第四行走腿。刺猬毛位于前两对步行腿的爪的切割边缘和第四对步行腿的最后两段上的并置表皮表面上。所有这四种类型的感受器都是机械和化学敏感的。对机械刺激敏感但对化学刺激不敏感的感受器包括钉状感受器，其是位于表皮凹陷内的铰接插座中的小感受器，分布在甲壳、胸足和上颌骨的表面上。其他的机械感受器包括位于腹足动物和第三颚足动物上的表皮关节栓器官（=CAP器官），以及在触角和触角上发现的钟状感受器。没有发现专一的化学感受器。
ABSTRACT Chemosensory neurons and mechanosensory neurons innervate all the cephalothoracic appendages of the lobster Homarus americanus, including the antennules, antennae, six pairs of mouthparts, and five pairs of pereiopods. The structure and sensory function of sensilla on these appendages are described. Sensilla on the pereiopods and maxillipeds can be classified morphologically and physiologically. Smooth setae and squamous setae are the primary setal types in the rows and tufts of hairs on the walking legs; they also are found on the maxillipeds and, less abundantly, on the crusher and seizer claws. Serrate setae are common on the maxillipeds and the third and fourth walking legs. Hedgehog hairs are located on the cutting edges of the claws of the first two pairs of walking legs and on apposable cuticular surfaces on the last two segments of the fourth pair of walking legs. All four of these types of sensilla are both mechano- and chemosensitive. Sensilla sensitive to mechanical but not to chemical stimuli include peg sensilla, which are small sensilla situated in articulated sockets within cuticular depressions and are distributed over the surface of the carapace, pereiopods, and maxillipeds. Other mechanoreceptive sensilla include cuticular articulated peg organs (=CAP organs), located on the pereiopods and on the third maxillipeds, and campaniform sensilla, found on the antennae and antennules. Exclusively chemosensory sensilla were not found.