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a typical joint

A joint is the place where two or more bones make contact.[1] They allow movement (except for skull bones) and give mechanical support.[2]

Joints have cartilage in between them, which help to make the movement flexible. Joints are described structurally and functionally. Structural classification is how the bones connect to each other; function is the degree of movement between the articulating bones.


  1. "Joint definition". eMedicine Dictionary. 27 April 2011. Retrieved 27 January 2012. 
  2. Ellis, Harold; Susan Standring; Gray, Henry David (2005). Gray's anatomy: the anatomical basis of clinical practice. St. Louis, Mo: Elsevier Churchill Livingstone. pp. 38. ISBN 0-443-07168-3 .