Parasitic adaptation in Helminths
Parasitic adaptation in Helminths
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Life Cycle and pathogenicity of Wuchereria bancrofti
Life Cycle and pathogenicity of Wuchereria bancrofti Classification- Phylum- Nematoda Class- Phasmida Order- Filaroida Genus- Wuchereria Species- bancrofti Wuchereria bancrofti is commonly known as filarial worm. This worm causes filariasis in humans. The name of this worm is given Wuchereria bancrofti in honor of the two scientists Wucherer and Bancroft who made considerable contribution in studying the disease caused by these worms. LIFE CYCLE OF WUCHERERIA Wuchereria is a heterogeneous parasite which completes its life cycle in two different hosts namely man and female culex mosquito. Life cycle in Man- This cycle is also known as Human Phase. The process of copulation takes place in the lymphatic system of the human. The male and female worms copulate when they are present in the same lymph gland. The female worms are ovoviviparous that is they produce eggs which hatch within the body of the female without obtaining nour
Life Cycle and pathogenicity of Ascaris lumbrcoides
Life Cycle and pathogenicity of Ascaris lumbrcoides
General Characteristics and Classification of Aschelminthes
A brief Introduction to phylum Aschelminthes There are several classes of animals where a pseudocoel is the area inside the body. It is not a true coelom because it is not filled with mesodermal epithelium, and it represents an embryonic blastocoel that survives. Such animal classes are known as pseudocoelomates (presence of a cavity, the pseudocoel, between the intestine and the body wall), and are often classified within a single superphylum aschelminthes. Gegenbaur (1859) created a group nemathelminthis to place some pseudocoelomates animal. General Characters- 1. Mostly aquatic, free living or parasitic. 2. Usually small, even microscopic. 3. Body slender, vermiform, unsegmented, flator cylindrical, bilaterally symmetrical and triploblastic. 4. Organ system grade of body organization. 5.Head not distinctily formed with well-defined sense organs. 6. Body wall is with a syncytial or cellular epidermis externally covered with thick cuticl
General Characteristics and Classification of Platyhelmenthes
General Characteristics and Classification of Platyhelmenthes