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A cross section of the cell (ventral side up) through the buccal
cavity showing basal bodies of the 3 membranelles (1, 2
and 3) lying along the indented dorsal wall. A short segment of
the oral ribs (or) separates the membranelles from the
undulating membrane (um) that lies at the margin of the right
wall. Basal body/cilium complexes (c) of a kinety are found at
the margin of the left wall. The left wall is covered by ER
(er) on its cytosolic side. EM taken on 8/25/67 by R. Allen
with Philips 200 TEM. Neg. 4,500X. Bar = 1µm.
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