Page 181 - parasitology for medical and clinical laboratoryprofessionals

CHAPTER

7

Intestinal Cestodes

LEARNING OBJECTIVES

Upon completion of this chapter, the learner will be expected to:

■ Describe the process by which cestodes reproduce
■ Understand the role of an intermediate host in the life cycle of the parasite
■ Define the development of cysticerci and the process of infecting definitive or final host
■ Explain why humans are considered “accidental” or “incidental” hosts
■ Discuss reproduction of cestodes and location of male and female reproductive systems
■ Provide an explanation of how prevention of infection by tapeworms could be achieved

KEY TERMS

Accidental host Ellipsoidal Proglottid
Acetabula Flame cell Pseudophyllidean
Bladderworms Flukes Rostellum
Bothria Hemaphroditic Scolex
Cephalic ganglion Hydatid larva (cyst) Strobila
Cestodiasis Incidental host Taenia saginata
Coenurus larva Mature proglottids Taenia solium
Coracidium Micro-crustacean copepod Taenia tapeworms
Corpus Hippocratorum Neurocysticercosis Taeniid
Cyclophyllidean Oncosphere Unembryonated eggs
Cysticercosis Operculum Uterine pore
Cysticerci Plerocercoid larva
Diphyllobothriid Procercoid

161