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  2. Gastrovascular cavity - Wikipedia

    en.wikipedia.org/wiki/Gastrovascular_cavity

    Gastrovascular system of the flatworm Dugesia, colored yellow. The gastrovascular cavity is the primary organ of digestion and circulation in two major animal phyla: the Coelenterates or cnidarians (including jellyfish and corals) and Platyhelminthes (flatworms). The cavity may be extensively branched into a system of canals.

  3. Mesentery (zoology) - Wikipedia

    en.wikipedia.org/wiki/Mesentery_(zoology)

    In zoology, a mesentery is a membrane inside the body cavity of an animal. The term identifies different structures in different phyla: in vertebrates it is a double fold of the peritoneum enclosing the intestines; in other organisms it forms complete or incomplete partitions of the body cavity, whether that is the coelom or, as in the Anthozoa ...

  4. Digestive system of gastropods - Wikipedia

    en.wikipedia.org/wiki/Digestive_system_of_gastropods

    The digestive system of gastropods has evolved to suit almost every kind of diet and feeding behavior. Gastropods (snails and slugs) as the largest taxonomic class of the mollusca are very diverse: the group includes carnivores, herbivores, scavengers, filter feeders, and even parasites. In particular, the radula is often highly adapted to the ...

  5. Coelom - Wikipedia

    en.wikipedia.org/wiki/Coelom

    The coelom (or celom) [1] is the main body cavity in many animals [2] and is positioned inside the body to surround and contain the digestive tract and other organs. In some animals, it is lined with mesothelium. In other animals, such as molluscs, it remains undifferentiated. In the past, and for practical purposes, coelom characteristics have ...

  6. Rumen - Wikipedia

    en.wikipedia.org/wiki/Rumen

    The rumen, also known as a paunch, is the largest stomach compartment in ruminants and the larger part of the reticulorumen, which is the first chamber in the alimentary canal of ruminant animals. [1] The rumen's microbial favoring environment allows it to serve as the primary site for microbial fermentation of ingested feed. [1]

  7. Insect physiology - Wikipedia

    en.wikipedia.org/wiki/Insect_physiology

    An insect uses its digestive system to extract nutrients and other substances from the food it consumes. [3]Most of this food is ingested in the form of macromolecules and other complex substances (such as proteins, polysaccharides, fats, and nucleic acids) which must be broken down by catabolic reactions into smaller molecules (i.e. amino acids, simple sugars, etc.) before being used by cells ...

  8. Intracellular digestion - Wikipedia

    en.wikipedia.org/wiki/Intracellular_digestion

    This process is known as intracellular digestion. [1] In its broadest sense, intracellular digestion is the breakdown of substances within the cytoplasm of a cell. In detail, a phagocyte's duty is obtaining food particles and digesting it in a vacuole. [2] For example, following phagocytosis, the ingested particle (or phagosome) fuses with a ...

  9. Coelenterata - Wikipedia

    en.wikipedia.org/wiki/Coelenterata

    Coelenterata is a term encompassing the animal phyla Cnidaria (coral animals, true jellies, sea anemones, sea pens, and their relatives) and Ctenophora (comb jellies). The name comes from Ancient Greek κοῖλος (koîlos) 'hollow' and ἔντερον (énteron) 'intestine', referring to the hollow body cavity common to these two phyla.