Water vascular systam big notes
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The water vascular system of echinoderms is essentially a system of fluid-filled canals that extend along each of the body regions and have many external projections called tube feet. There are several functions of thesystem, one of which is to use water pressure to mediate movement and assist in feeding.The water vascular system is a hydraulicsystem used by echinoderms, such as sea stars and sea urchins, for locomotion, food and waste transportation, and respiration. Thesystem is composed of canals connecting numerous tube feet.
Echinderms use their water vascular systemto aid in their locomotion. The madreporite islocated next to the central disk and takes inwater. The water continues to the stone canal to the ring canal and into the radial canals, located in each arm.
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