Hinge joint

Rarity: Common

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Notion

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Science and technology

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What Wikipedia says

A hinge joint (ginglymus or ginglymoid) is a bone joint where the articular surfaces are molded to each other in such a manner as to permit motion only in one plane. According to one classification system they are said to be uniaxial (having one degree of freedom).

Excerpt from the Wikipedia article “Hinge joint”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Produnis, CC BY-SA 3.0, via Wikimedia Commons.