| |

radial canalcanal radiating from a center, such as in a starfish Source: Noland, George B. 1983. General Biology, 11th Edition. St. Louis, MO. C. V. Mosby ... Full article ...
| |
radial canals. Canals along the ambulacra radiating from the ring canal of echinoderms; also choanocyte-lined canals in syconoid sponges.
| |
radial canalPart 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.
| |
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: Crustacea, Scale, Dorsal, Lateral, Pharynx

|