McCready P J, Boord R L
J Morphol. 1976 Oct;150(2 Pt. 2):527-37.
The topographic relationships of the superficial roots and ganglia of the anterior lateral line nerve (NLLa) to each other and to cranial nerves V, VII and VIII were studied, in the smooth dogfish Mustelus canis, by dissection of Sudan Black B stained specimens. NLLa consists of four branches: namely, superficial ophthalmic, buccal, otic and external mandibular. Each branch carriers lateral line neurons exclusively and forms a dorsal root and a ventral root which enter the anterior lateral line lobe and posterior lateral line lobe of the medulla respectively. It is estimated that slightly more than 50% of the fibers of the superficial ophthalmic, approximately 60% of the fibers of the buccal, at least 35% of the fibers of the otic and about 20% of the fibers of the external mandibular constitute the dorsal root. The ventral root is comprised of less than 50% of the fibers of the superficial ophthalmic, 40% of the fibers of the buccal, at least 50% of the fibers of the otic, and 80% of the fibers of the external mandibular. These results are correlated with the peripheral distribution and central termination of NLLa and it is concluded that the dorsal root carries axons from ampullary receptors and the ventral root carries fibers that innervate ordinary lateral line sense organs.
通过解剖经苏丹黑B染色的标本，对平滑狗鲨（Mustelus canis）前侧线神经（NLLa）的浅根和神经节之间以及与V、VII和VIII脑神经之间的局部关系进行了研究。NLLa由四个分支组成：即眼浅支、颊支、耳支和下颌外支。每个分支仅携带侧线神经元，并形成分别进入延髓前侧线叶和后侧线叶的背根和腹根。据估计，眼浅支略多于50%的纤维、颊支约60%的纤维、耳支至少35%的纤维和下颌外支约20%的纤维构成背根。腹根由眼浅支少于50%的纤维、颊支40%的纤维、耳支至少50%的纤维和下颌外支80%的纤维组成。这些结果与NLLa的外周分布和中枢终末相关，得出的结论是背根携带来自壶腹感受器的轴突，腹根携带支配普通侧线感觉器官的纤维。
