Which term refers to the fluid found in a joint?

Which term refers to the fluid found in a joint?

• A. Supination
• B. Synovial
• C. Vertebra
• D. Thigh atrophy

Answer: (B)

Synovial describes the fluid that fills and lubricates a joint. The joint cavity is lined by the synovial membrane, which produces the lubricating fluid known as synovial fluid. This fluid reduces friction between moving cartilage surfaces and helps nourish the joint. The term here is the best fit because it directly relates to the synovial lining and its fluid. The other options refer to a movement (supination), a bone (vertebra), or a muscle condition (thigh atrophy), which are not related to naming the joint fluid.

Synovial describes the fluid that fills and lubricates a joint. The joint cavity is lined by the synovial membrane, which produces the lubricating fluid known as synovial fluid. This fluid reduces friction between moving cartilage surfaces and helps nourish the joint. The term here is the best fit because it directly relates to the synovial lining and its fluid. The other options refer to a movement (supination), a bone (vertebra), or a muscle condition (thigh atrophy), which are not related to naming the joint fluid.