Ultrastructural morphology of the neuropile of the cerebral ganglion of Moniliformis moniliformis (Acanthocephala).
The cerebral ganglion of Moniliformis moniliformis consists of an outer single layer of cell bodies and an inner core of neuropile occupied by cellular processes. Morphological characteristics of 5 types of cellular processes have been described. Most of the processes in the neuropile were of large size, although sites containing numerous small processes (neurites) were also observed. Small processes in the neuropile were the sites of synaptic interaction. The majority of presynaptic membranes were well defined by the presence of electron-dense material at the inner leaflet, while postsynaptic membranes appeared to lack marked postsynaptic density. Round or flattened lucent vesicles were concentrated around the presynaptic membranes. Electron-dense and dense-cored vesicles were usually separated from the clear vesicles and situated at some distance from synaptic sites.
D000049:Acanthocephala / Q000648:ultrastructure*; D000818:Animals; D001369:Axons / Q000648:ultrastructure; D005724:Ganglia / Q000648:ultrastructure; D008854:Microscopy, Electron; D008990:Moniliformis / Q000648:ultrastructure*; D009474:Neurons / Q000648:ultrastructure; D013569:Synapses / Q000648:ultrastructure