Methods: Lumbar zypophyseal joints from 40 embalmed children cadavers and 24 adult cadavers were dissected and observed.Results: Synovial folds could be found in both adults and children.

• 方法：对24具成人腰椎脊柱标本和40具儿童腰椎脊柱标本的解剖，观测腰椎间关节内滑膜皱襞的结构。