Fig. 7. The embryonic progenitors of several cell types in a hermaphrodite. D, E and P₄ each gives rise to only one cell type, and C gives rise only to two neurons, 32 body muscles and nuclei that form part of hyp7, a large syncytium that forms most of the hypodermis, or skin, of the animal. Additional cell types derive from ABa, ABpl, ABpr and MS, but only those cell types discussed in the text are indicated. For a complete picture of the embryonic cell lineage of C. elegans, please go to http://www.wormatlas.org/Sulstonemblin_1983/results.html