Anatomy Of A Tapeworm

Tapeworms are flat segmented worms that live in the intestines of some animals. Animals can become infected with these parasites when grazing in pastures or drinking contaminated water.

Figure 33 12 Anatomy Of A Tapeworm

A cross section of a tapeworm reveals the ectoderm mesoderm endoderm and central body cavity that make up the tapeworm structure.

Anatomy of a tapeworm. Beneath the ventral nerve cord is a small sub neural vessel. The reproductive organs are suspended in the coelom and extend from the vlth to the xlxth segments. Tapeworms absorb nutrients from their host and the nutrients pass through pores in the ectoderm.

Ectoderm also contains genital pores for the release gravid or fertilized eggs that are ready to pass out of the host. An adult tapeworm consists of a knoblike head or scolex equipped with hooks for attaching to the intestinal wall of the host which may be a human a neck region and a series of flat rectangular body segments or proglottids generated by the neck. On this head there are teeth that hook the the intestines wall.

Thsi segment is ready to drop off of the tapeworm body and be eliminated from the host in feces subjects arts and humanities. It is the second larva in the life history of taenia and it develops from onchosphere hexacanth stage in the muscles of pig. The tapeworm has a head called the scolex.

Should this fail there are also a set of suckers. It is the slide of cysticercus larva inverted of taenia a tapeworm. Internal anatomy of earthworm.

In its transformation to cysticercus stage the onchosphere loses its hooks. The teeth and suckers keep the worm. Anatomy and function enter your search terms.

The body wall and the gut wall are best seen in a cross section. There is a ventral blood vessel ventral to the gut and overlying the ventral nerve cord. Tapeworm segment containing ripe fertilized eggs.

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