Worms and Parasites

By the nature of communication with the host distinguished true, spurious (false) parasites and hyper parasites.

True parasites – are organisms, for which a parasitic life form is mandatory and the existence of species-specific (eg, worms intestinal, lice, fleas). They may be obligate and facultative, permanent and temporary.

Spurious parasites – it is usually free-living organisms that have a random ingestion of other species can exist for some time in it and cause it harm the body (eg, house fly larvae in the human intestine).

Hyper parasites – a parasite, living near the parasites (for example, bacteria in the simplest and insect parasites).

For the duration of communication with the owner of the parasites are divided into:

standing that its entire life cycle conduct in the host organism, using it as a source of food and habitat (eg, roundworm, tapeworm, lice);

time associated with the host and feed for their account at a certain stage of development (eg, larval parasitism by wills-lucky flies, imaginal – from fleas and mosquitoes).

On the localization of parasites in the host are divided into:

ectoparasites, which live on the host integument (eg, lice, fleas, ticks);

endoparasites, which are localized within the host organism:

a) intracavitary – located in the cavities of connecting to the external environment (for example, in the gut – ascaris, whipworm);

b) tissue located in the tissues and closed cavities, (eg, liver fluke, tapeworm cysticerci);

c) intracellular – are localized in the cells (for example, malaria parasites, Toxoplasma).