The highest concentration of parasomal sacs is found in the oral region associated with the three ciliary membranelles, called in Paramecium, the ventral amd dorsal peniculi and the quadrulus. This mi...

Freeze fracture images of ciliated epithelial cells, Figures 8 (top) and 9 (bottom 2 panels) from Chapter 1 (The Cell Surface) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Figure 8 shows the P-face ...

High resolution image of the largest accumulation of endosomal vesicles and early endosomes is next to the buccal cavity area under the membranelles of the peniculi and quadrulus. Cilia of the penicul...

A cross section showing only one basal body in two different dikinetids. Cross sections of overlapping microtubular ribbons arising from the dikinetids are seen in the ridges next to the basal body. P...

A high resolution tangential view through a dikinetid shows two microtubular ribbons extending toward the pellicle, one from each basal body, and how they overlap with ribbons from other basal bodies ...

Stacks of 4 or 5 kinetodesmal fibers occupy the longitudinal ridges in a cross-sectioned cell. The kds lie along the right side of each ridge (cell’s left side), and as the kds are tapered, the smal...

Abstracted from an image by Simionescu and Simionescu in The Journal of Cell Biology (70:608-621), ©1976, The Rockefeller University Press. This image was reprinted as Figure 319 from Chapter 13 (Cil...

An image of a dikinetid in cross section near its proximal end. A postciliary ribbon and a transverse ribbon are seen. A short kinetodesmal fiber buds from the side of the kinetid. Coated vesicles or ...

Conchophthirus was deciliated by calcium ion shock followed by shearing through a 22 gauge needle. This revealed the location of the deciliated basal bodies and the cell's surface architecture. In thi...

A high resolution view of a longitudinal section through the buccal cavity of the oral region showing portions of 3 membranelles (1, 2 and 3): each membranelle consists of 3 rows of cilia. The oral ri...