subcutaneous prepatellar bursa

例句：

1. 1. The skin is the outermost layer of the body and is subcutaneous.
   皮肤是身体的最外层，位于皮下。
2. 2. The subcutaneous tissue is responsible for providing support to the underlying muscles.
   皮下组织负责为下面的肌肉提供支撑。
3. 3. The subcutaneous injection is a common method used to treat pain in the joints.
   皮下注射是一种常用的方法，用于治疗关节疼痛。