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Sponge Anatomy
Anatomy of Sponge
13
Biology
Undergraduate 1
02/09/2010

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Term
Pinacocytes
Definition
Epidermal cells lining outside of sponge
Term
Choanocytes
Definition
Cells lining inside of sponge with flagella that transport water
Term
Spicules
Definition
"skeleton" of sponge made up of CaCO3 or SiO2
Term
Spongin
Definition
Network of fibers making up the sponge's body
Term
Osculum
Definition
Main exit for water
Term
Ostium
Definition
Pores around sponge let water in
Term
Amoebocytes
Definition
Differentiate into archeocytes, scleroblasts, and thesocytes
Term
Archeocytes
Definition
Gametes, or sex cells, of sponge
Term
Scleroblasts
Definition
Form spicules CaCO3/SiO2
Term
Thesocytes
Definition
Food Storage for sponge
Term
Asexual Reproduction
Definition
Budding/gemmule
Term
Sexual Reproduction
Definition
Monoecious or dioecious
Term
Gemmule
Definition
Fresh water sponges only, contains amoebocytes and thesocytes
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