问:如果我们交叉双手手指,并将手掌向外翻转,然后再向后弯曲手指,那么就能听到手指关节发出“噼啪”的声响。这到底是什么原因呢?答:关节的周围都有液体包围,当这些液体中的气泡爆破时,关节处就会发出“噼啪”声。关节是两块分开的骨头相连接的地方,由结缔组织韧带支持和固定。 Q: If we cross the fingers of both hands and flip the palms out, and then bend our fingers back, we can hear the “click” of the finger joints. What is the reason for this? A: The joints are surrounded by liquids. When the bubbles in these liquids burst, a “click” sound will be heard at the joints. The joint is where two separate bones connect and is supported and fixed by connective tissue ligaments.