title: Contribution of electron microscopic studies to the biology and classification of parasitic cestodes (review article).
abstract: Members of phylum Platyhelminthes are leaf-like or tape-like worms. Class Cestoidea are exclusively parasitic organisms; covered with a nonciliated integument; ciliated epithelium, when present, confined to embryos (onchospheres) hatched from eggs; scolex provided with suckers and frequently hooks for attachment to host tissue; body in most species divided into separate, sexually complete proglottids. Class: Cestoidea: comprises two subclasses: Cestodaria body undivided; only one set of reproductive organs; oncosphere hatching from egg has 10 hooklets. Cestoda: body typically with scolex and series of proglottids, each with one set (rarely 2 sets) of male and female organs; oncosphere typically has 6 hooklets (Beaver et al., 1984).
authors.affiliation: Department of Medical Parasitology, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia.
authors.forename: Manal B
authors.initials: MB
authors.lastname: Jamjoom
mesh_terms: D000818:Animals; D002589:Cestoda / Q000033:anatomy & histology / Q000145:classification* / Q000648:ultrastructure*; D005260:Female; D008297:Male; D008854:Microscopy, Electron / Q000379:methods*; D010802:Phylogeny