Morphological structure and peripheral innervation of the lateral line system in the Siberian sturgeon (Acipenser baerii)

作     者：Wei SONG Jiakun SONG 

作者机构：Institute for Marine Biosystem and NeuroscienceShanghai Ocean UniversityShanghaiChina 

出 版 物：《Integrative Zoology》 (整合动物学（英文版）)

年 卷 期：2012年第7卷第1期

页      面：83-93页

核心收录：

学科分类：1001[医学-基础医学(可授医学、理学学位)] 10[医学] 

基　　金：supported in part by grants from the Science and Technol ogy Commission of Shanghai Municipality 073205109 the National Natural Science Foundation of China 30970365,and Hydrobiology funding project S30701 

主　　题：canal neuromasts electroreceptors lateral line nerves mechanoreceptors pit organ superficial neuromasts sturgeon 

摘      要：Light and scanning electron microscopy(SEM)were used to study the epidermal lateral line system of the Si-berian sturgeon(Acipenser baerii Brandt,1869).This system consists of mechanoreceptive neuromasts,ampul-lae and the electroreceptive *** neuromasts are located in 5 pairs of cephalic and 1 pair of trunk canals and superficially in the middle and posterior pit lines that lie dorsomedially along the top of the skull immedi-ately adjacent to the otic ampullae *** canal neuromasts and pit organ superficial neuromasts have oppo-site polarized hair cells that are parallel along the axis of the canal and pit line,***,they dif-fer in both size and shape and in the density and length of the hair *** ampullae are confined on the head,adjacent to the neuromast *** morphological structure of the ampullae in the Siberian sturgeon is similar to the ampullae in elasmobranchs and other primitive ***,it has a relatively large mucus-filled ampulla,and a shorter and narrower canal leading to a small opening to the outer epidermal *** also present new information concerning the peripheral innervation of lateral line receptors in *** re-ceptors of the lateral line system are innervated by 2 pairs of cranial nerves:anterior and posterior lateral line *** peripheral processes of the anterior lateral line nerve form superficial ophthalmic,buccal,otic and anteroventral *** peripheral processes of the posterior lateral line nerve form middle,supratemporal and lateral rami.