accessory

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accessory

 [ak-ses´ah-re]
supplementary or affording aid to another similar and generally more important thing.
accessory nerve the eleventh cranial nerve (called also spinal accessory nerve); it originates in the medulla oblongata and provides motion for the sternocleidomastoid and trapezius muscles of the neck. See anatomic Table of Nerves in the Appendices.

ac·ces·so·ry

(ak-ses'ō-rē), Avoid the mispronunciation uh-ses'ō-rē. Do not confuse this word with accessary.
anatomy denoting structures (muscles, arteries, nerves, glands, and others) that are auxiliary (normally present) or supernumerary (anomalous) to another more typical or larger structure of the same type. Most often, accessory structures are duplication variations.
Synonym(s): accessorius
[L. accessorius, fr. ac-cedo, pp. -cessus, to move toward]

ac·ces·so·ry

(ak-ses'ŏr-ē)
anatomy Denoting a muscle, nerve, gland, or organ, which is auxiliary or supernumerary to some other, generally more important structure.
[L. accessorius, fr. ac-cedo, pp. -cessus, to move toward]

ac·ces·so·ry

(ak-ses'ŏr-ē)
anatomy denoting structures (muscles, arteries, nerves, glands, and others) that are auxiliary (normally present) or supernumerary (anomalous) to another more typical or larger structure of the same type.
Synonym(s): accessorius.
[L. accessorius, fr. ac-cedo, pp. -cessus, to move toward]