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Consider a creature like a long-necked dinosaur: long-necked dinosaur

The neck and tail share many functional (and presumably anatomical) similarities. Specifically, as far as I'm concerned, they are both flexible appendages, which can be bent at many points along their length, formed into curves, and are made up of a series of similar vertebra (bone segments).

I'm looking for a term (a single word, or short phrase), that could be used to refer to this kind of anatomical appendage, in a way that is distinct from legs and arms. The main distinction being that a neck/tail of this type can be bent at several points and formed into curves, whereas a leg or arm can generally only be bent at a few points (shoulder/hip, elbow/knee and wrist/ankle).

"Limb", "appendage", "extremity" and similar synonyms don't work for me because they include, and usually imply, arms and legs.

The closest I've gotten so far is to prepend the word "vertebral" to one of these. For example, a "vertebral appendage" would be an appendage made of vertebra. This is workable enough, but I want to see if anyone can think of anything I've missed.

I'm especially hoping to find an established or technical term I've overlooked, but I'm open to any coined or otherwise alternative suggestions you can come up with.

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    Vertebral appendage seems to work well, I don't see any better alternatives at the moment
    – DialFrost
    Jul 4 at 2:20
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    Would "serpentine" work for you?
    – Hot Licks
    Jul 4 at 2:28
  • One finds instances of "sauropod-like" on the internet, and all the illustrated creatures have the long neck and tail. Jul 4 at 14:48

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