Mackie G O, Singla C L
J Neurobiol. 1975 Jul;6(4):339-56. doi: 10.1002/neu.480060402.
The layout of nerves, muscles, and conducting epithelia is described for the simple hydrozoan medusa Stomotoca. Comparisons are drawn with Sarsia and other recently studied forms. The major action systems are those responsible for swimming, crumpling (protective involution), tentacle posture, pointing (unilateral reciprocal flexions of the manubrium and margin), and visceral movements (barely mentioned). Crumpling is a simple summating response in this species. Crumpling and pointing are considered to use the same effectors but different conduction pathways. New histological results include the demonstration of a nerve plexus running through the endodermal canal system and a nerve plexus in the ectoderm encircling the peduncle. Special attention is given to the distribution of synapses and gap junctions, as possible trasmission pathways in behavioral responses. Some details are included on organization within the marginal nerve rings.
描述了简单水螅水母类的口面水母(Stomotoca)的神经、肌肉和传导上皮的布局。并与萨氏水母(Sarsia)及其他最近研究的物种进行了比较。主要的动作系统包括负责游泳、皱缩(保护性内卷)、触手姿势、指向(垂管和边缘的单侧交替弯曲)以及内脏运动(几乎未提及)的系统。在该物种中,皱缩是一种简单的总和反应。皱缩和指向被认为使用相同的效应器,但传导途径不同。新的组织学结果包括证明存在贯穿内胚层管道系统的神经丛以及围绕柄部的外胚层中的神经丛。特别关注了突触和缝隙连接的分布,它们可能是行为反应中的传递途径。还包括了一些关于边缘神经环内组织结构的细节。