An image of the oral ribs with their microtubular ribbons and alveolar tubes pass through the cytostome to the cytopharynx and nascent vacuole region. In this view the left wall of the buccal cavity is in grazing section so the partial layer of microtubules appears on both sides of the cytostome. The only membrane not associated with alveoli is that at the beginning of the cytopharynx. TEM taken on 8/29/67 by R. Allen with Philips 200 operating at 60kV. Neg. 25,700X. Bar = 0.5µm. A print of the negative was scanned and processed in Photoshop. This image is best used for qualitative analysis. A high resolution image (CIL:34847) is available for quantitative analysis.
Standard glutaraldehyde fixation followed by osmium tetroxide, dehydrated in alcohol and embedded in an epoxy resin. Microtome sections prepared at approximately 75nm thickness. Additional information available at (http://www5.pbrc.hawaii.edu/allen/).
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