lophophores Flashcards
(9 cards)
What are the 3 phyla of lophophorates?
Phronidia, Bryozoa, Brachiopodia
What is the lophophore?
circum-oral body region characterized by a circular or U-shaped ridge around the mouth. Ridge bears 1 or 2 rows of ciliated hollow tentacles
What is the internal space within the lophophore and tentacles?
coelomic cavity
Where is the anus
lies outside the ring
What is the function of the lophophore?
Food collecting and gas exchange
How do lophophores feed?
Sessile or sedentary suspension feeders
How does water flow through the lophophore
Water currents are created by the lateral cilia. Particles carried to the base of the crown by the frontal cilia, then passed along groove by cilia to the mouth.
What is the coelomic cavity of the lophophore
Mesocoel
What is the larger primary coelomic cavity?
Metacoel