From Wikipedia, the free encyclopedia

A spongocoel ( /ˈspɒŋɡˌsl/ [1]), also called paragaster (or paragastric cavity), is the large, central cavity of sponges. Water enters the spongocoel through hundreds of tiny pores ( ostia) and exits through the larger opening ( osculum). Depending on the body plan of the sponge (which can be asconoid, syconoid, or leuconoid), the spongocoel could be a simple interior space of the sponge or a complexly branched inner structure. Regardless of body plan or class, the spongocoel is lined with choanocytes, which have flagella that push water through the spongocoel, creating a current.

The spongocoel is lined by a variety of cell types, each having a unique function: [2]

  • porocytes – line the pores of the sponge and are the structure through which water is taken into the organism
  • choanocytes – exhibit flagella that create inward currents of water for the sponge's stationary filter feeding mechanism
  • amoebocytes – motile cells that perform various digestive functions within the sponge by transporting and/or storing food and excreting waste.

References

  1. ^ "Spongocoel". Dictionary.com Unabridged (Online). n.d. Retrieved 2016-01-24.
  2. ^ "The Phylum Porifera". people.eku.edu. Retrieved 2017-02-22.


From Wikipedia, the free encyclopedia

A spongocoel ( /ˈspɒŋɡˌsl/ [1]), also called paragaster (or paragastric cavity), is the large, central cavity of sponges. Water enters the spongocoel through hundreds of tiny pores ( ostia) and exits through the larger opening ( osculum). Depending on the body plan of the sponge (which can be asconoid, syconoid, or leuconoid), the spongocoel could be a simple interior space of the sponge or a complexly branched inner structure. Regardless of body plan or class, the spongocoel is lined with choanocytes, which have flagella that push water through the spongocoel, creating a current.

The spongocoel is lined by a variety of cell types, each having a unique function: [2]

  • porocytes – line the pores of the sponge and are the structure through which water is taken into the organism
  • choanocytes – exhibit flagella that create inward currents of water for the sponge's stationary filter feeding mechanism
  • amoebocytes – motile cells that perform various digestive functions within the sponge by transporting and/or storing food and excreting waste.

References

  1. ^ "Spongocoel". Dictionary.com Unabridged (Online). n.d. Retrieved 2016-01-24.
  2. ^ "The Phylum Porifera". people.eku.edu. Retrieved 2017-02-22.



Videos

Youtube | Vimeo | Bing

Websites

Google | Yahoo | Bing

Encyclopedia

Google | Yahoo | Bing

Facebook