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

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Can cracking fingers cause Arthritis? [duplicate]

I have been cracking my fingers for 2-3 years and on the first year I was told that I'm going to get arthritis because of it. I've been researching this since the first year and I've never gotten an ...
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715 views

Are there birds with knees instead of elbows?

This is probably not a very good question for this site, but I couldn't find an answer elsewhere. Are there any birds whose legs fold the same way human legs do, in a knee, instead of an elbow which ...
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Why does cracking a joint make noise?

What causes the noise when you crack a joint? Is joint cracking harmful?
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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 ...
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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 ...