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The nephridium (pl.: nephridia) is an invertebrate organ, found in pairs and performing a function similar to the vertebrate kidneys (which originated from the chordate nephridia). Nephridia remove metabolic wastes from an animal's body. Nephridia come in two basic categories: metanephridia and … 展开
A metanephridium (meta = "after") is a type of excretory gland found in many types of invertebrates such as annelids, arthropods and mollusca. (In mollusca, it is known as the 展开
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• Baeumler N., Haszprunar G. & Ruthensteiner B. (2012). "Development of the excretory system in a polyplacophoran mollusc: stages in metanephridial system development". Frontiers in Zoology 9: 23. doi: 展开A protonephridium (proto = "first") is found in the phyla Platyhelminthes, Nemertea, Rotifera and Chordata (lancelets). They have the same anatomy as the metanephridia but with the internal ciliated funnel blocked by terminal cells: either a flame cell (if … 展开
CC-BY-SA 许可证中的维基百科文本 Nephridium | Excretory System, Tubules & Cilia | Britannica
Nephridium is a unit of the excretory system in many primitive invertebrates and the amphioxus. Learn about the two forms of nephridia, protonephridia and metanephridia, and their functions and structures.
Nephridia: Types, Structure, and Osmoregulatory Function
2024年10月29日 · Learn how nephridia, excretory structures in invertebrates, vary in design and function across species. Discover how they regulate fluid and ion balance in different environments using cilia, tubules, and selective transport.
Nephridium : Meaning, Physiology and Function - Biology Discussion
Nephridium is an excretory tubule that opens to the exterior or coelom in annelids. Learn about the types, structure and development of nephridia, and their role in excretion and digestion.
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Excretion in Annelida - Nephridia - Biology Notes Online
2024年10月2日 · Learn about nephridia, the specialized excretory structures in annelids that filter waste and regulate osmotic balance. Find out the types, structure, function and physiology of nephridia in earthworms and other annelids.
Nephridia, Malpighian Tubules, Coelomocytes
Learn about the different types of excretory organs in invertebrates, such as nephridia, contractile vacuoles, and malpighian tubules. Nephridia are tubular structures found in annelids, nemertines, flatworms, and rotifers that excrete …
Flame Cells of Planaria and Nephridia of Worms - Biology LibreTexts
2024年11月23日 · Nephridia are the excretory organs of some worms, such as flatworms and nematodes. They consist of a network of tubules that transport waste products to the outside of the body.
Animal evolution: Of flame and collar cells - Cell Press
2021年8月23日 · Nephridia are small excretory organs that differ in type and germ-layer origin across bilaterian animals. A new study compares gene expression and reveals homology of nephridia and their origin from ciliated …
Nephridia : Structure and Functions - zoolibs.com
2024年9月23日 · Nephridia are excretory organs found in many invertebrates, such as earthworms. Learn about the three types of nephridia (septal, integumentary and pharyngeal) and their structure and functions in this article.
Nephridium - Encyclopedia.com
2018年5月14日 · nephridium (pl. nephridia) The excretory organ of many invertebrates, consisting of a simple or branched tube, formed by the ingrowth of ectoderm, with cilia at the inner end. Excretory products diffuse into the nephridium and are wafted to the exterior by ciliary action.
