Fig. 1From: Regeneration of the digestive tract of an anterior-eviscerating sea cucumber, Eupentacta quinquesemita, and the involvement of mesenchymal–epithelial transition in digestive tube formationThe animal used in the study. A small sea cucumber, Eupentacta quinquesemita, is about 5 cm in size. The left side in this figure is oral (anterior), and the right side is aboral (posterior)Back to article page