| Tube Feet |
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| CATEGORIES ABOUT TUBE FEET | |
| echinoderms | |
| feet, tube | |
| animal anatomy | |
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Tube feet are the many small tubular projections found most famously on the ventral face of a Sea Star 's arms, but are characteristic of the Water Vascular System of the Echinoderm phylum which also includes Sea Urchin s, Sand Dollar s and Sea Cucumber s and many other sea creatures. Tube feet function in locomotion and feeding. The tube feet in a sea star are arranged in grooves along the arms. They operate by Hydraulic Pressure . They are used to pass food to the ventral mouth at the center, and can attach to surfaces. A sea star that is overturned simply turns one arm over and attaches it to a solid surface, and levers itself the right way up. |
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