Echinodermata vocabulary Flashcards
TUBE FEET (PODIA)
appendages that act like suction cups
PEDICELLARIA
a small wrench- or claw-shaped structure commonly found on Echinoderms
BIPINNARIA
the first stage in the larval development of most sea stars
ABORAL
surfaces away from or opposite the mouth
ORAL
underside of the sea star’s body where the mouth is located
MADREPORITE
sieve-like plate on the aboral surface that acts as the opening to the water vascular system
AMPULLAE
bulbs on the tops of the tube feet that control the amount of water entering and leaving the tube feet
REGENERATION
the ability to regrow lost body parts
PENTARADIAL
special kind of radial symmetry seen in sea stars with 5 arms
OSSICLES
calcium carbonate plates that make up the endoskeleton in sea stars
WATER VASCULAR SYSTEM
a hydraulic system used by echinoderms for locomotion, food and waste transportation, and respiration.
STONE CANAL
the part of the water vascular system that connects the madreporite to the ring canal.
