Does the Water Vascular System Work?

The water vascular system also projects from holes in the skeleton in the form of tube feet

. These tube feet can expand or contract based on the volume of water present in the system of that arm. By using hydrostatic pressure, the animal can either protrude or retract the tube feet.

Does the water vascular system help with circulation?

A Circulatory System of Sorts

Their blood and fluids are pumped around their body by their water vascular system, which is found in all echinoderms. In addition to helping with motion and righting themselves, the water vascular system helps move their blood around by using changing fluid pressure.

How does a sea star water vascular system work?

Locomotion: Sea stars move using a water vascular system. Water comes into the system via the madreporite. ... The radial canals carry water to the ampullae and provide suction to the tube feet. The tube feet latch on to surfaces and move in a wave, with one body section attaching to the surfaces as another releases.