radial canal
canal radiating from a center, such as in a starfish
Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ...
radial canal
Part of the water vascular system, it extends into each arm of the starfish and ends in a small external tentacale at the tip of each arm.
radial canals. Canals along the ambulacra radiating from the ring canal of echinoderms; also choanocyte-lined canals in syconoid sponges.
Water passes through a stone canal to a ring canal and into the radial canals in each arm. The radial canals feed into lateral canals extending into tube feet, each of which has an ampulla.
 See also: Colon, Sexual, Plant, Membrane, Larva
|
