Hulínská D, Shaikenov B
Folia Parasitol (Praha). 1984;31(2):141-5.
The structure and distribution of the sense organs of the head and the tail of two day-old Trichinella species (females) have been determined by transmission (TEM) and scanning (SEM) electron microscopy. In both species occur 16 cephalic sense organs, which contain three modified dendritic processes, in addition to the amphids. The nerve cell bodies are situated in the area above the nerve ring. The amphid contains ten dendritic processes. The sense organs open to the external environment by pores through the cuticle. Above the bulbous tip, the dendritic processes are surrounded by hypodermal cells. They enter posteriorly the pseudocoelom and join in subventral, subdorsal and two sublateral nerves, with transparent nuclei, in the area above the nerve ring. The distribution of the sense organs of larvae from the muscles and from the uterus is similar to that of the adults. The dendritic processes are short, most of their distal chamber is compacted with a dense, filamentous material. The rectum in the tail end of the female is innervated from the dorsal ganglion composed by multipolar cells with numerous dendrites and a single axon. Close to the excretory pore occurs a hemizonid which consists of six to eight dendrites and is situated between the hypodermis and the muscles. This organ has not been found in the larva.
利用透射电子显微镜（TEM）和扫描电子显微镜（SEM）确定了两日龄旋毛虫属物种（雌性）头部和尾部感觉器官的结构和分布。在这两个物种中，除了双乳突外，还有16个头部感觉器官，其中包含三个经过修饰的树突状突起。神经细胞体位于神经环上方区域。双乳突包含十个树突状突起。感觉器官通过角质层上的小孔与外部环境相通。在球根状顶端上方，树突状突起被皮下细胞包围。它们向后进入假体腔，并在神经环上方区域加入腹侧、背侧和两个外侧神经，这些神经具有透明的细胞核。来自肌肉和子宫的幼虫感觉器官的分布与成虫相似。树突状突起很短，其大部分远端腔被致密的丝状物质压实。雌性尾部的直肠由由多极细胞组成的背神经节支配，这些多极细胞具有许多树突和单个轴突。靠近排泄孔处有一个半侧器，它由六到八个树突组成，位于皮下组织和肌肉之间。在幼虫中未发现该器官。
