Ref ID : 5913
Fred C. Divers and Ralph A. Pax; The effect of physiological salines on the crop-gizzard of the earthworm, Lumbricus terrestris. Can.J.Zool. 53:1391-1394, 1975
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Isolated earthworm crop-gizzards bathed in Pantin's saline show rhythmic contractions at a rate of about 3/min. The contraction rate increases when intralumenal pressure is increased. However, when isolated crop-gizzards are bathed in a new saline developed by Drewes and Pax (1974) no spontaneous contractions occur. In situ experiments show that the activity for the crop-gizzard consists of irregularly spaced contractions at an average rate of only 0.7/min. This activity is altered by Pantin's saline, but not by the new saline.