Explain the wuchereria of nematoda which belongs to non chordate phyla?

The wuchereria is also known as filarial worm. It acts as a parasite in the lymphatic system of human being. They are the primary host and have mosquito as their intermediate host and are known as digenetic. The filarial forms microfilariae which reach the gut of mosquito. They move to haemocoel and then to the proboscis of mosquito. They show sexual dimorphism. The female is longer and straight while the male is short and curved. The females have separate anus and genital aperture and these openings are combined in the males. They block the lymphatic system and cause inflammation of lymph nodes. In few of cases it leads to a fatal condition known as elephantiasis. It affects the legs and arms.