caa a22 4500 477095690 CHVBK 20180405111526.0 cr unu---uuuuu 170330e19960201xx s 000 0 eng 10.1007/BF00214701 doi (NATIONALLICENCE)springer-10.1007/BF00214701 Synaptology of the olfactory bulb of an elasmobranch fish, Sphyrna tiburo [Elektronische Daten] [Laurence Dryer, Pasquale Graziadei] The ultrastructure of the elasmobranch olfactory bulb was examined in order to determine the synaptology of the olfactory circuitry in the bonnethead shark, Sphyrna tiburo. The compartmentalization of the bulb, together with the lack of mitral cell basal dendrites, suggests a different way of performing lateral communication between mitral cells of the olfactory bulb. The results show that granule cells assume an important role by directly interlinking mitral cells. A corollary of this is the segregation of the input onto the mitral cell dendritic arborization: afferent fibers synapse onto the intraglomerular mitral terminals, whereas most local circuit interactions utilize extraglomerular synapses located on the shafts and the somas of the mitral dendrites. Therefore, the elasmobranch synaptic pattern is different from that of higher vertebrates; This might represent the use of a different neural route to achieve the same processing task. Springer-Verlag, 1996 Ultrastructure nationallicence Olfaction nationallicence Sharks nationallicence Basal dendrites nationallicence Synapses nationallicence Dryer Laurence Program in Neuroscience, Department of Biologic Science, Florida State University, 32306, Tallahassee, FL, USA aut Graziadei Pasquale Program in Neuroscience, Department of Biologic Science, Florida State University, 32306, Tallahassee, FL, USA aut Anatomy and Embryology Springer-Verlag 193/2(1996-02-01), 101-114 0340-2061 193:2<101 1996 193 429 https://doi.org/10.1007/BF00214701 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00214701 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dryer Laurence Program in Neuroscience, Department of Biologic Science, Florida State University, 32306, Tallahassee, FL, USA aut NATIONALLICENCE 700 1- Graziadei Pasquale Program in Neuroscience, Department of Biologic Science, Florida State University, 32306, Tallahassee, FL, USA aut NATIONALLICENCE 773 0- Anatomy and Embryology Springer-Verlag 193/2(1996-02-01), 101-114 0340-2061 193:2<101 1996 193 429 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer