ExcFIG 2: Differential interference contrast microscopy (DIC) image of the excretory system in an adult C. elegans.

A. The excretory gland cell is located on the ventral side between the intestine and the terminal bulb of the pharynx.
B. The excretory cell nucleus is large and has a "fried egg" appearance with a large nucleolus.
C. The duct cell is anterior to the excretory cell.
D. The excretory pore cell is ventral to the duct cell. The duct passes through the duct and pore cells and opens outside at the pore. RVG; retrovesicular ganglion.
Ventral is down and anterior to the left in all images.

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