Figure 1. Life cycle of Taenia solium cysticercosis (source: CDC- DPDx). Cysticercosis is an infection of both humans and pigs with the larval stages of the . 2 May Taenia solium is the pork tapeworm that causes two types of diseases in humans: Taeniasis – caused by the adult Taenia solium a. This lesson provides a very detailed overview of the life cycle, morphology, and cytology of ”Taenia solium”. You’ll learn exactly how it involves man and swine.

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The invaginated knob develops suckers on its inner surface and hooks are developed at its bottom. Scandinavian Journal of Infectious Diseases. The eggs originally have a thin, outer, hyaline membrane like life cycle of taenia solium eggshell that sloughs off by the time the eggs are passed in the feces. Hence, after copulation the sperms are stored temporarily in the seminal receptacle waiting for the maturity of the eggs and when such eggs come in the oviduct, fertilisation occurs.

It is a parasite whose definitive host is man and whose intermediate host can be man or swine. Special sense organs are absent but free nerve endings are abundant in the scolex and rest of the body. The free eggs and detached proglottids are released into life cycle of taenia solium environment through peristalsis. From Wikipedia, the free encyclopedia.

Pigs ingest the eggs from human faeces or vegetation contaminated with human excreta. And so, one of two things can happen during this timeframe.


The knob internally develops four suckers ,a small rostellum and hooks at its base. Mesomeres develop into radially striated inner embryonic membrane or embryophore.

Such proglottids are called gravid proglottids. As a resultsome gravid proglottides are pushed back in to the stomach. After fertilisation, the eggs are transformed into capsules and packed in the uterus. Taenia solium Cysticercosis from Basic to Clinical Science. Therefore, there life cycle of taenia solium no body cavity in it. The scolex with its suckers and hooks is an organ of attachment to the intestinal wall of the host, thus, working as an organ of adhesion or the holdfast.

The power of anaerobic respiration enables it to live in an environment of intestinal contents which is oxygen-free.

Taenia ,ife, the pork tapeworm of man, as adult lives in the intestine of man leading an endoparasitic life. The adult tapeworms attach to the small intestine by their scolex and reside in the small intestine.

Help and Review High School Biology: Add to Add to Add to. The infection of Taenia Solium causes a disease called taeniasis in human beings. Presence of complex reproductive organs.

What is Taenia Solium? – Life Cycle & Cytology

Answer Now and help others. Expiration is not a valid, future date. Taenia solium diagram showing the structure and the labeled parts.

However, the complete life life cycle of taenia solium of Taenia solium may be represented with the help of the following flow-chart: In Gagandeep Singh, Sudesh Prabhakar. Male reproductive organs consist of testes, vasa efferentia, vas deferens, cirrus or penis and cirrus sac.


Zip Code Zip code is required. Password Help us protect your account by creating a strong password. When the scolex of taenia solium causes injury to the intestinal wall, it triggers reverse peristalsis.

Taenia Solium Life cycle, Morphology, Diagram and Images of Scolex and Egg

The embryo with six hooks is called hexacanth embryo. Micromeres become the morula. Select a subject to preview related courses: A cysticercus is oval in shape, containing an inverted scolex specifically “protoscolex”which everts once the organism is inside the small intestine.

It is also thought that as its scolex is deeply anchored life cycle of taenia solium the intestinal mucosa, hence, it also absorbs tissue fluids from the host. It completes life cycle of taenia solium life cycle in humans as the definitive host and pigs as intermediate host. What is Taenia Solium? Below the embryophore, a thin basement membrane is also formed. The cestodes tapeworms Taenia saginata beef tapeworm and T. The embryonic development of Taenia solium begins in the uterus itself.

However, it consists of three layers, an outer comidial layer having fine thread-like spines called microtriches, a thick middle homogeneous layer, and the innermost thin basement membrane.