1 / 16

HELMINTHS.

HELMINTHS. Introduction. CHARACTERISTICS. Lack a digestive system. Nervous system reduced. Locomotion reduced or completely lacking. Reproductive system often complex. LIFE CYCLE. Larval. Dioecious. Monoecious. Hermophroditic. PLATYHELMINTHS- FLAT WORMS. Trematodes. Cestodes.

zamora
Download Presentation

HELMINTHS.

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. HELMINTHS. Introduction.

  2. CHARACTERISTICS. • Lack a digestive system. • Nervous system reduced. • Locomotion reduced or completely lacking. • Reproductive system often complex.

  3. LIFE CYCLE. • Larval. • Dioecious. • Monoecious. • Hermophroditic.

  4. PLATYHELMINTHS- FLAT WORMS. • Trematodes. • Cestodes.

  5. FLUKES. • Clonorchis sinensis( Asian liver fluke ). • Paragonimus westermani (Lung fluke ).

  6. CESTODES- TAPEWORMS. • Taenia saginata (Beef tapeworm). • Taenia solium (Pork tapeworm). • Echinococcus granulosus (Dog tapeworm).

  7. NEMATODES- ROUNDWORMS. • Enterobius vermicularis - pinworm. • Ascaris lumbricoides. • Necator americanus- hookworm. • Trichinella spiralis.

  8. ENTEROBIUS VERMICULARIS. • Adult pinworms found in the L.I. • Eggs deposited on the perianal skin. • Diagnosis- sticky tape.

  9. ASCARIS LUMBRICOIDES. • Dioecious: Sexual dimorphism. • Eggs can survive soil for long periods. • Diagnosis- fecal smear.

  10. NECATOR AMERICANUS. • Live in S.I. of man. • Eggs excreted in feces. • Larvae hatches and enters its host by penetration. • Diagnosis- fecal smear.

  11. TRHINELLA SPIRALIS. • Acquired by eating undercooked/raw pork. • Trichinosis. • Larvae freed from cyst in human digestive tract.

More Related