. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. MECHANISMS OF RETINULA CELLS 631 ances represented by rhabdomere membrane and eccentric cell membrane. If tbis interpretation is correct, no light-induced resistance change should occur between an electrode in the eccentric cell and an electrode in a retinula cell of the same retinula. An experiment to test this prediction has not yet been reported. If the rhabdomere is the site of the primary photochemical event, and distal, non-rhabdomere membrane is the site of the change in ionic permeability which is responsible for est
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. MECHANISMS OF RETINULA CELLS 631 ances represented by rhabdomere membrane and eccentric cell membrane. If tbis interpretation is correct, no light-induced resistance change should occur between an electrode in the eccentric cell and an electrode in a retinula cell of the same retinula. An experiment to test this prediction has not yet been reported. If the rhabdomere is the site of the primary photochemical event, and distal, non-rhabdomere membrane is the site of the change in ionic permeability which is responsible for establishing the generator potential, it is reasonable to suggest that the rhabdomere releases a substance \vhich traverses the interior of the retinula cell to reach distal, non-rhabdomere membrane and alter its permeability. 2. Variations in retinula morphology and their possible significance If it is plausible that the eccentric cell of Limulus is excited by currents generated in the retinula cells, it is equally plausible that in retinulas without eccentric cells, currents generated in one cell flow through all of the cells. In other words, func- tional interactions among retinula cells of the same retinula must be considered a. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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