A) Taenia seginata
B) Taenia solium
C) Echinococcus granulosus
D) Fasdola hepatica
Correct Answer: A
Solution :
Taenia saginata is known as the beef tape worm. It is a digenetic parasite. Its primary host is man and secondary host is cattle. Scolex of T. saginata is small and of pin head size but is devoid of rostellum, hooks and uterine branchery. Taenia solium is commonly known as the pork tapeworm. It is also a digenetic parasite. Its primary host is man but secondary host is pig. Its frond end of body is swollen into a minute knob like head or scolex. It has a protrusible lid or rostellum with 22-32 curved hooks arranged in two whorls. Fasciola hepatica commonly known as liver fluke is also a digenetic parasite. It was discovered by Jehan de Brie but was described by Gabucinus. The anterior region has a head tube, whose tip bears an oral or anterior sucker with mouth in its centre. Below the head lobe the ventral surface has a cup shaped posterior sucker or acetabulum. Echinococcus granulosus also known as dog tapeworm is a parasite of cats. Its primary host is dog and intermediate hosts are sheep and goat. It has 3-4 large segments (proglottids) apart from scolex and neck with also average length of 2-8 mm.
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