These joints are synovial, meaning they have a joint capsule and a small amount of synovial fluid in between.

关节突关节是滑膜关节，即关节有关节囊，囊内有少量滑液。

The cool thing about these cavities is that they contain a bit of viscous, egg-white-like synovial fluid that acts like grease on a hinge.

这些空腔最酷的一点是它们含有一点粘性的、蛋清状的滑液，就像铰链上的油脂一样。

They started each session collecting a blood sample, and a bit of synovial fluid, the natural lubricant inside the knee joint.

他们在每次训练开始时采集血样和少量滑液，滑液是膝关节内的天然润滑剂。

They're caused by tiny bubbles in your synovial fluid, which is just the fancy name for the fluid in between your joints that keeps your bones from scraping together.

它们是由滑液中的小气泡引起的，滑液是关节之间防止骨骼刮擦的液体的别称。

They were also a compound called Cartilage Oligomeric Matrix Protein, or COMP, which can be a marker of arthritis if there's a bunch of it in your synovial fluid.

它们也是一种称为软骨寡聚基质蛋白 (Cartilage Oligomeric Matrix Protein) 或 COMP 的化合物，如果滑液中有大量这种化合物，它可能是关节炎的标志。

The synovium's composed of loose connective tissue, blood vessels, lymphatic vessels, and on the surface—" Type A" cells that clear cellular debris and " Type B" cells that produce components of synovial fluid, which helps lubricate the two articular surfaces.

滑膜由松散结缔组织、血管、淋巴管组成；在滑膜表面，A型细胞清理细胞碎屑，B型细胞产生滑液成分，滑液能够润滑两块关节的表面。