What is proglottid?

Some articles on proglottids, proglottid:

Echinococcus Granulosus
... in length from 2 mm to 7 mm and has three proglottids ("segments") when intact - an immature proglottid, mature proglottid and a gravid proglottid ...
Taenia Saginata - Description
... The strobila is composed a series of ribbon-like segments called proglottids ... The segments are made up of mature and gravid proglottids ... Taenia, consisting between 1000 to 2000 proglottids, and can also have a lifespan of 25 years in a host's intestine ...
Hymenolepis Nana - Reproduction
... like all tapeworms, contains both male and female reproductive structures in each proglottid ... When a proglottid becomes old and unable to absorb any more nutrition, it is released and is passed through the host's digestive tract ... This gravid proglottid contains the fertilized eggs, which are sometimes expelled with the feces ...
Tetraphyllidea
... Its proglottids, which are the segments of tapeworms that contain the reproductive structures, are longer than wide when immature, and become wider than long at maturity ... However, the proglottids at each stage are generally the same shape ... antonioi is the large amount of testes per mature proglottid ...
Cestoid - Anatomy - Proglottids
... The body is composed of successive segments (proglottids) ... The sum of the proglottids is called a strobila, which is thin, and resembles a strip of tape ... use flame cells (protonephridia), located in the proglottids, for excretion ...