Sporocyst Larva: It looks like an elongated sac, about 0.7 mm long. Its body-wall retains all the layers of body wall of Miracidium except the ciliated ectoderm. During metamorphosis into Sporocyst, the outer coat of ciliated cells is thrown off, the pigment cells of the eye-spot separate from one another and loose their crescentic form and the organism becomes a [...]
Transmission of E. histolytica from man to man occurs through its encysted stage and infection is effected through the ingestion of these cysts in food or drinks. It is to be noted that mature quadrinucleate cysts are the infective forms of this parasite. The contamination of food and drinks is occurred by: i. Faecal contamination of drinking water, vegetables and [...]
In this article we will discuss about the structure of adult hookworm. This will also help you to draw the diagram and structure of hookworm. i. Adult hookworms have slightly stout, more or less cylindrical body with a curved anterior end, dirty rust colour and covered with tough cuticle. The fully grown male worms measure about 8-11 mm long and [...]