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Definition
| a hydraulic system used by echinoderms |
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Definition
| An internal supporting skeleton, derived from the mesoderm, that is characteristic of vertebrates and certain invertebrates. |
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Definition
| an elongated area of the shell of an echinoderm in which a row of tube feet are arranged. |
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Definition
| the three smallest bones in the human body, the malleus, the incus and the stapes. |
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Definition
| a small wrench- or claw-shaped structure commonly found on Echinoderms |
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Definition
| Tube feet (podia) are supported by a hydraulic and connective-tissue skeleton |
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Definition
| a lightcolored calcerous opening used to filter water into the water vascular system of echinoderms |
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| dermal branchiae/ papulae |
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Definition
| skin gills, are projections of the coelom of Asteroidea that serve in respiration and waste removal. |
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Definition
| carry water to the ampulla (reservoir) portion of tube feet. |
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Definition
| pouches on the ring canal whose function may be osmoregulation or hydraulic regulation within the water vascular |
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Definition
| a dilated portion of a canal or duct, especially of the semicircular canals of the ear |
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Definition
| is used to maintain food stationary for consumption |
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Definition
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Definition
| The common cavity into which the intestinal, genital, and urinary tracts open in vertebrates such as fish, reptiles, birds, and some primitive mammals. |
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Definition
| radially symmetrical marine invertebrates including e.g. starfish and sea urchins and sea cucumbers. |
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Definition
| A large class of Echinodermata, including numerous extinct families and genera, but comparatively few living ones. |
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Definition
| radially symmetrical marine invertebrates including e.g. starfish and sea urchins and sea cucumbers. |
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Term
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Definition
| class that includes sea urchins |
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Term
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Definition
| class of echinoderms including the sea cucumbers |
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