Autonomic innervation of the ovary of the Atlantic cod,Gadus morhua |
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| Authors: | Kazumasa Uematsu Susanne Holmgren Stefan Nilsson |
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| Institution: | (1) Comparative Neuroscience Unit, Department of Zoophysiology, University of Göteborg, Box 250 59, S-400 31 Göteborg, Sweden;(2) Present address: Faculty of Applied Biological Science, Hiroshima University, Saijo-cho, Higachi-Hiroshima, Hiroshima 724, Japan |
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| Abstract: | The autonomic innervation of the ovary of the Atlantic cod was investigated using histochemical and physiological/pharmacological methods. The paired ovary receives autonomic innervation via branches of the posterior splanchnic nerve (vesicular nerve).Histochemical studies demonstrated vasoactive intestinal polypeptide (VIP)-immunoreactive, 5-hydroxytryptamine-immunoreactive and adrenergic nerve fibers, but a number of antisera raised against other peptides failed to reveal any specific reaction in the tissue preparations. It is concluded that the cod ovary receives a double antagonistic autonomic innervation of excitatory cholinergic fibers and non-adrenergic inhibitory fibers. The nature of the inhibitory neurotransmitter is not known. |
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| Keywords: | autonomic nerves ovary teleost fish cholinergic adrenergic |
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