Question

Describe the water vascular system in Echinodermata.

Answer 1

Vascular System in Echinodermata:

1. Echinoderms have a characteristic coelomic water vascular system.
2. This system is controlled hydraulically.
3. It comprises a circumoral ring covering the esophagus which connects radial canals.
4. The radial canals lead to an ambulacrum.
5. The radial canals lead to an ambulacral groove and tube feet.
6. An example of an echinoderm is starfish.