...Martina Zinourov Roncalli di Montorio; Carmen Falcone; Giovanna Ponte Background: Glial cells are important elements constituting the nervous systems and playing important roles. The characterization and exploration about their role are largely based on studies in mammals. Early in the history...

...Frank Hirth The many different nervous systems found in bilaterally symmetric animals may indicate that the tripartite brain appeared several times during the course of bilaterian evolution. However, comparative developmental genetic evidence in arthropods, annelids, urochordates, and vertebrates...

...). Allometry Ecomorphology Nervous system Cerebellum Morphometrics Neuromorphology Comparative brain morphology Chondrichthyan Batoid Batoids (electric rays, sawfishes, guitarfishes, skates and stingrays) and sharks comprise the subclass Elasmobranchii, an ancient and highly successful group...

... and the regression line describing the allometric relationship was calculated using the generalized least squares (GLS) regression [Garland and Ives, 2000] using the equation: Allometry Ecomorphology Nervous system Cerebellum Morphometrics Neuromorphology Comparative brain morphology Chondrichthyan...

... or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements. Ontogeny Nervous system Sense organs Electroreceptors Pisces Teleostei Clarias Innervation Differentiation Convergence Brain Behav Evol 1989;34:43-47 © 1989 S. Karger A G...

.... Nervous system Evolution Morphometry Carnivora Perrisodactyla Artiodactyla Xenarthra Sirenia At each step and branch of mammalian brain evolution, multiple and often competing demands must be satisfied. Developmental constraints and covariation among developmental processes, metabolic...

... or of their effectiveness, quality or safety. The publisher and the editor(s) disclaim responsibility for any injury to persons or property resulting from any ideas, methods, instructions or products referred to in the content or advertisements. Allometry Ecomorphology Nervous system Cerebellum Morphometrics...

... ) reduced the FMRFa evoked nitrite production in all ganglia. This is the first description of an anatomical relationship between putative NO producing and FMRFa containing cells, suggesting a possible regulatory role of FMRFa in the NO mediated signaling in an invertebrate nervous system. 28 04 2003...

... and primates. In many instances, steroid hormones regulate the volume of particular regions of the nervous system by affecting both the number of constituent neurons and their size. A major determinant of neuronal number is the process of programmed cell death (PCD), which involves molecular machinery...