The locations at which two bones make contact. They may be movable or unmovable.

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What causes knuckle “popping” and the feeling of relief that comes from it?

Many people like cracking their knuckles. I have always been curious about it. What happens when we crack knuckles? What creates the POP sound? Why do we get a relief-like feeling after doing it?
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Mechanism of syndesmophyte growth in AS

Ankylosing Spondylitis (AS) causes inflammation around joints and the growth of syndesmophytes that may eventually fuse vertebrae. I'm familiar with the genetics (HLA-B27, IL1A) related to the ...
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Enlargement of joints in osteoarthrosis

If osteoarthritis (osteoarthrosis) is a degenerative condition, where the cartilage in joints wears down, what causes the joints to become inflamed? I'm reading through a book called Understanding ...