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Anatomical features in the body cavity of C. elegans. (A) This diagram shows the major body plan of the animal with two concentric tubes and the intervening pseudocoelomic cavity. Alae are exterior structures derived from the hypodermis. (B–F) Cross-sections that correspond with the approximate position of the dotted lines on the hermaphrodite in Figure 1B. DNC, dorsal nerve cord. VNC, ventral nerve cord. Reprinted from Wormatlas (www.wormatlas.org) with permission.
