Ambulacrum | definition of ambulacrum by Medical dictionary
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ambulacrum (ăm′byə-lăk′rəm, -lā′krəm)
n. pl. ambu·lacra (-lăk′rə, -lā′krə)
One of the five radial areas on the undersurface of the starfish and similar echinoderms, from which the tube feet are protruded and withdrawn.
ambulacrum one of the five radial bands on which tube feet occur on the outside surfaces of ECHINODERMS.
References in periodicals archive
The "low side" is opposite this and is centered near ambulacrum
This relative displacement is linked with the balance between the anterior and posterior parts of the test (manifested in the multiplication of the plates in ambulacrum
The "relative size" of a plate pair was defined as the area of the plate pair, divided by the area of the plate pair in ambulacrum
III of the same specimen.
Tube foot movements during burrowing involve bending away from the ambulacrum
toward the sides of the arm.