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Head, neck and body wall muscles. a The organization of somatic muscles in the adult C. elegans, dorsal oblique view. The body wall muscles are organized in four quadrants (only the dorsal quadrants are visible) with two rows of cells in each. Bar 50 µm. b Arrangement of head and neck muscles, ventral view. c Arrangement of the somatic tail muscles, ventral view. Original magnification, ×600 (Altun and Hall 2009)
