MORPHOLOGY [6]

T. solium can be accurately characterised by observing the following features of each form:

Scolex. [F]

Scolex (adult tapeworm): This feature, a distinct indicator of this parasitic form, consists of two rings of hook-like structures and four suckers.

Gravid proglottid section. [F]

Lateral uterine branches (gravid proglottid): As in the picture above, 7-12 of these branches can be visulaized, if the parasite is indeed T. solium.

Lateral genital pore (gravid proglottid): Demarcated by the arrow in the picture above, this feature is also an identifying characteristic.

Cysticercus. [F]

Invaginated scolex (cysticercus): This structure, stained dark pink inside the cysticercus sac, is a defining characteristic. The length of the cysticercus (approx. 15 mm) also distinguishes this larval form.

Taeniidae egg. [F]

Striated outer zone (egg): This zone, also called the embryopore, is only specific to the Taeniidae family, not T. solium.