The morphology of the horseshoe crab (Limulus polyphemus) visual system |
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| Authors: | Wolf H. Fahrenbach Ph.D. |
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| Affiliation: | (1) Laboratory of Electron Microscopy, Oregon Regional Primate Research Center, 505 N.W. 185th Avenue, 97006 Beaverton, Oregon, USA |
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| Abstract: | Summary Efferent fibers to the compound eye of the horseshoe crab, Limulus polyphemus, not only innervate the various pigment cells, but also invade the eccentric cell dendrite and the retinula cells. This finding provides a structural basis for the coupling of circadian rhythm between the efferents and the receptor cells.This short communication is Publication No. 1130 of the Oregon Regional Primate Research Center. The research was supported by Grants RR-00163 and EY-00392 from the National Institutes of Health |
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| Keywords: | Eye Neuroeffector junction Octopamine Circadian rhythm Ultrastructure |
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