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[颞下颌]关节盘
Discus articulationis temporomandibularis
- 拉丁语近义词： Discus articularis temporomandibularis
定义
关节盘是一薄的椭圆形纤维软骨板，位于下颌骨髁突与下颌窝之间。其上表面由前向后呈凹凸形，以适应下颌窝和关节结节的形态。其下表面与髁突相接触，呈凹形。其周缘与关节囊相连；前方与翼外肌的肌腱相连。其周缘，尤其是后部，较中央部厚。构成关节盘的纤维呈同心圆排列，周缘处较中央部更为明显。关节盘将关节腔分为上下两个腔，每个腔均覆有滑膜。
參考資料
This definition incorporates text from a public domain edition of Gray's Anatomy (20th U.S. edition of Gray's Anatomy of the Human Body, published in 1918 – from http://www.bartleby.com/107/).
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