Ambulacral

Ambulacral

Ambulacral is a term typically used in the context of anatomical parts of the phylum Echinodermata or class Asteroidea. Echinoderms can have ambulacral parts that include ossicles, plates, spines, and suckers. For example, sea stars or "star fish" have an ambulacral groove on their oral side (underside). This ambulacral groove extends from the mouth to the end of each ray or arm. Each groove of each arm in turn has four rows of hollow tube feet that can be extended or withdrawn. Opposite the ambulacral groove is an ambulacral ridge on the aboral side of each ray.

Sources

*http://www.palaeos.com/Invertebrates/Echinoderms/Echinodermata.Glossary.html
*http://tolweb.org/Asteroidea


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Look at other dictionaries:

  • Ambulacral — Am bu*la cral, a. (Zo[ o]l.) Of or pertaining to ambulacra; avenuelike; as, the ambulacral ossicles, plates, spines, and suckers of echinoderms. [1913 Webster] …   The Collaborative International Dictionary of English

  • ambulacral — adj. Zool. Perteneciente o relativo a los ambulacros. ☛ V. pie ambulacral …   Diccionario de la lengua española

  • ambulacral — ► adjetivo 1 ZOOLOGÍA Del ambulacro. FRASEOLOGÍA aparato ambulacral ZOOLOGÍA Sistema de locomoción de los equinodermos. * * * ambulacral. adj. Zool. Perteneciente o …   Enciclopedia Universal

  • ambulacral — adjective Date: 1836 of, relating to, or being any of the radial areas of echinoderms along which run the principal nerves, blood vessels, and elements of the water vascular system < ambulacral grooves > …   New Collegiate Dictionary

  • ambulacral — {{＃}}{{LM A02064}}{{〓}} {{［}}ambulacral{{］}} ‹am·bu·la·cral› {{《}}▍ adj.inv.{{》}} Del ambulacro, o relacionado con este: • Los pies ambulacrales de la estrella de mar son sus órganos de locomoción.{{○}} …   Diccionario de uso del español actual con sinónimos y antónimos

  • ambulacral ridge — (ECHINODERMATA: Asteroidea) The internal ridge of the external ambulacral groove …   Dictionary of invertebrate zoology

  • ambulacral brush — noun : a modified oral or anal ambulacral foot in heart urchins expanded into appendages resembling tentacles …   Useful english dictionary

  • ambulacral — See ambulacrum. * * * …   Universalium

  • ambulacral — adjective Of or pertaining to an ambulacrum …   Wiktionary

  • ambulacral — am|bu|la|cral Mot Agut Adjectiu invariable …   Diccionari Català-Català

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