Class Cestoda: Tapeworm Study

• What is the body of a tapeworm called?

  Strobila
• Stages in the life cycle of a tapeworm

  1️⃣ Egg phase

  2️⃣ Larval development in intermediate host

  3️⃣ Adult maturation in definitive host
• What is the larval form of a tapeworm called?

  Cysticercus
• Match the definitive host with the corresponding tapeworm species:

  Humans ↔️ Taenia saginata

  Dogs ↔️ Echinococcus granulosus
• Larvae develop into cysts in the definitive host.

  False
• What intermediate host is associated with Taenia saginata?

  Cattle
• Which tapeworm is associated with pigs as intermediate hosts?

  Taenia solium
• Match the tapeworm species with its source of human infection:

  Taenia saginata ↔️ Undercooked beef

  Taenia solium ↔️ Undercooked pork

  Diphyllobothrium latum ↔️ Raw or undercooked fish

  Hymenolepis nana ↔️ Contaminated food or water
• What is the difference between the scolex of Taenia solium and Taenia saginata?

  Hooks and suckers vs. suckers only
• What neurological effects are associated with Cysticercosis?

  Seizures, headaches
• Match the key features with the corresponding tapeworm species:

  Hymenolepis nana ↔️ Cosmopolitan parasite

  Diphyllobothrium latum ↔️ Wider than long proglottids
• What deficiency is caused by Diphyllobothrium latum?

  Vitamin B12
• Which animal serves as the definitive host for Echinococcus granulosus?

  Dogs
• Life cycle stages of Echinococcus granulosus

  1️⃣ Eggs ingested by intermediate hosts

  2️⃣ Hydatid cysts develop in tissues

  3️⃣ Dogs consume infected hosts

  4️⃣ Adults form in dogs' small intestine
• Echinococcus multilocularis forms cysts with well-defined walls.

  False
• What condition is caused by Echinococcus multilocularis in humans?

  Alveolar echinococcosis
• Match the social tradition with the associated infection:

  Shared utensils ↔️ Gastrointestinal infections

  Communal bathing ↔️ Skin and eye infections

  Burial practices ↔️ Soilborne diseases