coelom

(noun)

A fluid-filled cavity within the body of an animal. The digestive system is suspended within the cavity that is lined by a tissue called the peritoneum.

Related Terms

(noun)

A fluid-filled cavity within the body of an animal. The digestive system is suspended within the cavity, which is lined by a tissue called the peritoneum.

Related Terms

Examples of coelom in the following topics:

  • Development of the Extraembryonic Coelom

    • The extra-embryonic coelom is a cavity that contains the chorion.
    • The extra-embryonic coelom (or chorionic cavity) is a portion of the conceptus consisting of a cavity between Heuser's membrane and the trophoblast.
    • As development progresses, small lacunae begin to form within the extra-embryonic mesoderm that become larger and form the extra-embryonic coelom.
    • The extra-embryonic coelomic cavity is also called the chorionic cavity—it is enclosed by the chorionic plate.

  • Somite Development

    • In the development of the human embryo the intraembryonic coelom (or somatic coelom) is a portion of the conceptus that forms in the mesoderm.

  • Serosa

    • The serous cavities are formed from the intraembryonic coelom and are basically an empty space within the body surrounded by a serous membrane.
    • Early in embryonic life, visceral organs develop adjacent to a cavity and invaginate into the bag-like coelom.

  • Serous Membranes

    • The serous cavities are formed from the intraembryonic coelom and are basically an empty space within the body, surrounded by serous membrane.
    • Early in embryonic life, visceral organs develop adjacent to a cavity and invaginate into the bag-like coelom.

  • Amnion Development

    • This fluid increases in quantity, causing the amnion to expand and ultimately to adhere to the inner surface of the chorion so that the extra-embryonic part of the coelom is obliterated.

  • Tissue Development

    • The formation of a mesoderm leads to the development of a coelom, a fluid filled cavity.
    • Organs formed inside a coelom can freely move, grow, and develop independently of the body wall while fluid cushions and protects them from shocks.

  • Body Cavity Membranes

    • The peritoneum is the serous membrane that forms the lining of the abdominal cavity or the coelom—it covers most of the intra-abdominal (or coelomic) organs—in amniotes and some invertebrates (annelids, for instance).

  • The Peritoneum

    • The peritoneum is the serous membrane that forms the lining of the abdominal cavity or the coelom.
    • It covers most of the intra-abdominal, or coelomic, organs.

  • Trophoblast Development