• What causes knuckles to making popping sounds?
  • 點閱:1
  • 作者:
  • 出版社:Next Animation Studio
  • 出版年:2013
  • 集叢名:Implants, injuries and diseases Natural and Social Science Animation.3,疾病與治療
  • 格式:JPG
租期14天 今日租書可閱讀至2020-04-17

This animation describes what happens when a person cracks their knuckle joints. All of the joints in the body are surrounded by connective tissues, ligaments and synovial fluid. Synovial fluid is a clear, thick liquid that contains dissolved gasses. When joints, such as the ones between finger bones are pulled apart as a person cracks his or her knuckles, the volume increases between the joints, lowering the pressure inside the synovial fluid and causing the gases within it to burst.

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