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Morphometric Analysis of the Synaptic Ribbons and Nerve Vesicles of the Cat Pineal Gland After Electrical Stimulation of the Superior Cervical Ganglia
Author(s) -
González Gabino,
AlvarezUria Manuel
Publication year - 1986
Publication title -
journal of pineal research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.881
H-Index - 131
eISSN - 1600-079X
pISSN - 0742-3098
DOI - 10.1111/j.1600-079x.1986.tb00722.x
Subject(s) - synaptic vesicle , stimulation , superior cervical ganglion , pineal gland , cervical ganglia , anatomy , vesicle , synapse , biology , chemistry , neuroscience , melatonin , genetics , membrane
The nerve vesicles and synaptic ribbons were quantified in the cat pineal gland after electricl stimulation of the pineal sympathetic nerve fibers. It has been shown that the bilateral electrical stimulation of the preganglionic fibers innervating the superior cervical ganglia (SCG) markedly reduces the number of dense cores of small dark vesicles (SDV) and on the other hand modifies the number and shape of the large dark vesicles (LDV). An increase in the number of the synaptic ribbons after stimulation of the SCG supports the hypothesis that the numerical reduction of dense cores of nerve vesicles in the cat pineal gland influences the level of synaptic ribbon formation.