Echinodermata vocabulary

Question 1

TUBE FEET (PODIA)

Answer 1

appendages that act like suction cups

Question 2

PEDICELLARIA

Answer 2

a small wrench- or claw-shaped structure commonly found on Echinoderms

Question 3

BIPINNARIA

Answer 3

the first stage in the larval development of most sea stars

Question 4

ABORAL

Answer 4

surfaces away from or opposite the mouth

Question 5

ORAL

Answer 5

underside of the sea star’s body where the mouth is located

Question 6

MADREPORITE

Answer 6

sieve-like plate on the aboral surface that acts as the opening to the water vascular system

Question 7

AMPULLAE

Answer 7

bulbs on the tops of the tube feet that control the amount of water entering and leaving the tube feet

Question 8

REGENERATION

Answer 8

the ability to regrow lost body parts

Question 9

PENTARADIAL

Answer 9

special kind of radial symmetry seen in sea stars with 5 arms

Question 10

OSSICLES

Answer 10

calcium carbonate plates that make up the endoskeleton in sea stars

Question 11

WATER VASCULAR SYSTEM

Answer 11

a hydraulic system used by echinoderms for locomotion, food and waste transportation, and respiration.

Question 12

STONE CANAL

Answer 12

the part of the water vascular system that connects the madreporite to the ring canal.