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KMID : 0381920000300030255
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Korean Journal of Microscopy
2000 Volume.30 No. 3 p.255 ~ p.264
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Three-dimensional Structure of the Processes of Photoreceptor Cells and Nerve Cells in the Pineal Organ of the Catfish, Parasilurus asotus
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Nam Kwang-Il
Lee Song-Eun
Oh Chang-Seok
Bae Choon-Sang
Park Sung-Sik
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Abstract
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The topographic correlation between the processes of photoreceptor cells and nerve cells in the pineal organ of catfish, Parasiluns asotus, was studied using 3D electron microscopy. Upon examination, one neuronal cell process was found to pass through the intertwined processes of the photoreceptor cells. Interestingly , we observed two photoreceptor processes interlock, after which two buds from one process penetrated the other. Synaptic ribbons were observed in the cytoplasm of the photoreceptor cella, especially near the neuronal process. Macrophages were occasionally found to be contact with the outer segments of the photoreceptor cells in the pineal lumen.
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KEYWORD
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Catfish, Pineal organ, 3D Electron microscopy
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