Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2008.1032.1036Carassius auratus (Toleostei)]]>SampourM. 72008117In C. auratus the adrenal chramaffin tissue is situated around
the posterior cardinal veins, in the head kidney. Chromaffin tissue consists
of two types of cells containing secretory granules, adrenaline and nor
adrenaline cells. The cells produced catecholamine hormones. Adrenaline
cell contains electron-lucent granules, whereas nor adrenaline cells possesses
electron-dense granules. Cholinergic fibers embedded in the head kidney
innervated the chromaffin cell. Two types of secretory structures, synaptic
vesicles and secretory granules are found within the presynaptic terminal.
Secretory granules discharge their contests, as neuropeptide in non synaptic
area of nerve terminal by exocytosis, whereas synaptic vesicles discharge
their contents as neurotransmitters at the synaptic thickening (active
zone) in the presynaptic terminal by exocytosis.]]>Chester Jones, I. and D. Bellamy,196418195236Cormack, D.H.,1987Epple, A. and I.C. Potter,1985Geotria australis.]]>183225231Gallo, V.P., A. Civinini, L. Mastrolia, G. Leitner and S. Porta,1993Gasterosteus aculeatus (Teleostei: Gasterosteidae).]]>92133142Guyton, A.C.,1991Hathway, C.B., J.E. Brinn and A. Epple,1989249238242Heuster, J.E.,19897410511069Imagawa, T., H. Kitagwa and M. Uehara,1996Cyprinus carpio: Regional differences of the connections between nerve endings and chromaffin cells.]]>188149156Lamouche, S. and N. Yamaguchi,2001in vivo.]]>280R510R518Montpetit, C.J. and S.F. Perry,2000Oncorhynchus mykiss.]]>166705714Perry, S.F. and N.J. Bernier,1999177285295Rocha, R.M., H.S. Leme-Dos Santos, C.A. Vicentini and C. Da Cruz,2001Brycon cephalus Gunther 1869 (Teleostei: Characidae).]]>30351355Scheuermann, D.W.,1993183327342Schultzberg, M., J.M. Landsberg, T. Hokfelt, L. Terennius, J. Brandt, R.P. Elde and M. Goldstein,1987311691186Tomlinson, A. and R.E. Coupland,1990169209236Withes, P.C.,19921992Young, J.Z.,199375571624Youson, J.H.,1976Amia calva L.]]>54843851