Fig. 4

SEM of control untreated H. contortus adult worm showing normal buckle capsule, cervical papillae (a) and cuticle surface aspect (b). (i: dorsal lancet tip, ii: cervical paillae).

SEM of control untreated H. contortus adult worm showing normal buckle capsule, cervical papillae (a) and cuticle surface aspect (b). (i: dorsal lancet tip, ii: cervical paillae).