[Structure of the neuropile of the abdominal trunk of Oweniidae (Polychaeta, Oweniidae)].
By means of vital staining with methylene blue, structural organization of the abdominal nerve trunk has been studied in the Polychaeta--Myriochele oculata Zachs. Topographic relations of sensitive, motor and associative neurons of the neuropil are demonstrated. Overwhelming majority of the trunk nerves are unipolar, and a small part--bipolar. The sensitive and motor elements of the neuropil have not any strict zonal localization and are situated in it both dorsally and ventrally. The associative apparatus is presented by a system of short links. The abdominal trunk is a non-paired formation. During evolution of the Oweniidae, there, probably, took place a process on inclusion of the sensitive bipolar neurons into the composition of the associative apparatus of the abdominal trunk.
Iu P
IuP
Lagutenko
D000818:Animals; D009420:Nervous System / Q000033:anatomy & histology* / Q000166:cytology; D011077:Polychaeta / Q000033:anatomy & histology*
Struktura neiropilia briushnogo stvola oveniid (Polychaeta, Oweniidae).