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Eucestoda, commonly referred to as tapeworms, is the larger of the two subclasses of flatworms in the class Cestoda (the other subclass being Cestodaria). Larvae have six posterior hooks on the scolex (head), in contrast to the ten-hooked Cestodaria .
All tapeworms are hermaphrodites, with each individual having both male and female reproductive organs. Humans are subject to infection by several species of tapeworms if they eat undercooked meat such as pork ( Taenia solium ), beef ( T. saginata ), and fish ( Diphyllobothrium ), or if they live in, or eat food prepared in, conditions of poor ...
An egg of dwarf tapeworm. Hymenolepis nana, like all tapeworms, contains both male and female reproductive structures in each proglottid. This means that the dwarf tapeworm, like other tapeworms is hermaphroditic. Each segment contains three testes and a single ovary.
Each worm also has proglottids, which are wider segments of the tapeworm that contains both male and female reproductive organs. [1] Each mature segment has unilateral genital pores and 3 testes. When the eggs have been fertilized the segments are referred to as gravid.
Taenia solium, the pork tapeworm, belongs to the cyclophyllid cestode family Taeniidae. It is found throughout the world and is most common in countries where pork is eaten. It is a tapeworm that uses humans ( Homo sapiens ) as its definitive host and pigs (family Suidae ) as the intermediate or secondary hosts .
Tapeworms are parasites that live in the bodies of their hosts including humans. A 38-year-old man from China was one such host -- recently having a 20-foot-long version of the parasite removed ...
Glaridacris catostomi is a tapeworm, implying it has a simple scolex and an unsegmented body. [2] The defining characteristics of the genus Glaridacris are distinct male and female gonopores, an elongate body, a follicular ovary, a wedge-shaped scolex, and median and lateral vitellaria.
These are released into the body from the adult tapeworm, contain both male and female anatomical structures, and are in stages of mature, postmature and gravid. In general, human Bertiella morphology is not well understood due to the rarity of infection, and therefore limited possibility for study and observation. Particularly lacking are ...