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| Cirri arise from the ventral side and the adoral zone of membranelles (AZM) circle the anterior end of the cell and curve ventrally along one side of the oral cavity. The AZM is composed of triplet rows of cilia in the anterior end of the cell. Cirri are composed of 8 or 9 rows of tightly packed cilia. The cell uses these cirri to crawl over the substrate. EM taken on 7/24/67 by R. Allen with Philips 200 TEM. Neg. 1,370X. Bar = 5µm. |
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