作用是约束骨骼，活动关节，保持人体正常 的运动功能，维持人体正常的体位姿势的是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='32468' and id < 2578849 and id<>'2578849' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32468' and id > 2578849 and id<>'2578849' order by id asc limit 5