Fig. 4
From: Ascariasis in a 75-year-old man with small bowel volvulus: a case report

a Buccal orifice with three lips (two subventral and one dorsal); b Posterior end of the worm straight
From: Ascariasis in a 75-year-old man with small bowel volvulus: a case report
a Buccal orifice with three lips (two subventral and one dorsal); b Posterior end of the worm straight