PATHOLOGY

Detailed explanation-1: -There are three main groups of helminths (derived from the Greek word for worms) that are human parasites: Flatworms (platyhelminths) – these include the trematodes (flukes) and cestodes (tapeworms). Thorny-headed worms (acanthocephalins) – the adult forms of these worms reside in the gastrointestinal tract.

Detailed explanation-2: -Tapeworms (Cestodes) Tapeworm eggs are for the most part ingested through food, water, or soil contaminated with human or animal host excrement. After ingestion, they develop into larvae, which can move out of the intestines and form cysts in different tissues, for example, lungs and liver.