A cross section of a muscle larvae of Trichinella spiralis including the stichosome and the esophagus.
(see Takahashi Y, et al. Morphology of the alimentary tract of Trichinella spiralis muscle larvae with emphasis on the esophagus. Parasitology Research 75, 42-49 1988)
The esophagus(E) is surrounded by the stichosome. The esophagus is situating by the cord