1. Prepared by: Reem Al dossari
Taenia
Prepared by: Reem Al dossari

2. Taenia External Features: Kingdom:Animalia Subkingdom:eumetazoa
Class:Cestoda
Order:Cyclophllidea
Genus:Taenia
Species:Taenia saginata (beef tape­worm)
Taenia solium (pork tapeworm)
External Features:
Tatnia saginata has four large muscular suckers; no mouth or hooks exist.
Scolex of T. solium is relatively smaller and has a rounded prominent rostellum with a double row of chitinous hooks.

3. T. solium
T. saginata
human
Definitive host
pig
cattle
Intermediate host
found in the muscles or subcutaneous tissues of their intermediate host (generally, pigs).
in the cow after ingestion of the worm eggs
Larvae
contains the uterus (unbranched), overy, genital pore, and testes
The Mature Proglottis
T. solium uterus is less branched (7-to main branches on each side).
the uterus in T. saginata is branched and is filled with eggs. (20-30 main branches on each side
The Gravid Proglottids
similar
Eggs
It takes about 5 to 12 weeks for the worm to mature into adulthood in the human intestine. Usually only a single worm is present at time
Incubation Period

5. The Mature Proglottis

6. Life Cycle:

7. The Egg

8. 1-Rostellum 2-Hooks 3-Suckers
Scolex of Taenia solium
1-Rostellum
2-Hooks
3-Suckers

9. T. saginata
1-Suckers

10. Taenia (Mature Proglottis)2 3 4 5 1 6
Taenia (Mature Proglottis)
1- Ovary testes uterus vas deferens 5- vagina genetal atrium

11. 1 2
Gravid Proglottids)
1-utreus
2- eggs

12. Gravid Proglottids)
T. solium
T. saginata

13. Thank you
for your attention