Answer: Synovial Fluid.
Explanation:
Synovial fluid is also known as synovia, which is a viscous extracellular fluid which is non Newtonian fluid found in the cavities of the sinovial joints.
This fluid has a consistency of egg white and is non reactive. The main role of this fluid is to provide flexibility and reduce friction during the various types of body movements, between the articular cartilage of the joints.
So, the correct answer is Synovial fluid.
