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Science Starfish Glossary Vocabulary

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aboral

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Terms in this set (20)

toward or on the opposite side or end from the mouth. the aboral surface of a sea star is the functional upper surface

amburacral groove

the fissure along the midline of the oral surface of each arm of a sea star, where most of the tube feet are housed

the bulb atop each tube foot. the ampulla lies within the coelom while the attached tube foot projects through the body wall

one of the lateral projections from the central disc of a sea star of brittle star usually occurring in multiples of five; also called a ray

the central portion of a sea star from which the arms or rays radiate