Chapter10: Reconstitution Of Powdered Drugs
Section: Chapter Questions
Problem 49SST
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What is labelled diagram of Brugia malayi ?
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Phylum ascheleminthes or nemathelminthes is a phylum of unsegmented, triploblastic, pseudocoelomic, cylindrical long thread-like worms that are covered by a body wall having cuticle and epidermis. The phylum was created by Grobben in 1910 for the grouping of roundworms and related animals. Roundworms were previously placed under nemathelminthes by Gagenbaur (1859). It includes about 15000 species of both free-living and parasitic worms. The phylum has five classes- nematodes, nematophora, rotifers, kinorhyncha, and gastrotricha.
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Brugia malayi (roundworm)
- It is an endoparasite and bilaterally symmetrical.
- It is found in South and Southeast Asia.
- Human beings are primary hosts while the secondary host is Mansonia. It is a causative agent of lymphatic filariasis (elephantiasis).
- malayi are long and slender with a smooth cuticle.
- It is kinked and has long cephalic space.
- It has length and width in the ratio of 2:1.
- Its head is slightly swollen and has two circles of papillae.
- Its tail is ventrally curved.
- Male is 2cm long and 1.0 mm wide while the female is 8cm long and 0.3 mm wide.
- An intermediate host, it occupies thorax, stomach, muscles, and proboscis. In definitive host, it passes to the lymphatic system through the bloodstream.
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