L6

Helminthes (Worm)
A. Cestodaes (Tape Worm)
B. Trematodes ( Flukes).
C. Nematodes (Roundworms)

Cestodaes (Tape Worm)
1.Taenia saginata=Beef Tape Warm
2.Taenia solium=Pork TW
3.Diphyllobotherium latum =Broad fish TW
4.Echinococcus granulosis=Dog TW
5.Hymenolepis nana =Dwarf TW
General properties of Helminthes
1.Helminthes:thes organisms differ from protozoa in the fact that there are multicellular and contain internal organ system.
2.cestodes segmented Worm that primarily intestinal parasite.
3. They lack a digestive system and absorb soluble nutrient directly through their cuticle, causing mechanical blockage of the intestine.
4. Adult worm consist of :
a. head or scolex, with hooks and sucker that function to attach the worm to the intestinal wall.
B.neck is very short after scolex.
C. body segment (proglottids); each segment contain set of male and female sexual organs (immature &mature & gravid segment). Gravid segment contain fertile eggs, these pass out of the body in the stool.
5.cestodes utilize more than one host.
6.The infection occur in human during ingestion the larva in mediated host in most parasites ingestion the egg may be occur.