👉 The stem fluid, also known as hyaluronan, is a complex carbohydrate and a major component of the extracellular matrix in connective tissues. It plays a crucial role in maintaining tissue structure and function by forming a gel-like matrix that facilitates cell-to-cell communication, supports tissue hydration, and aids in wound healing. Stem fluid also contributes to the mechanical properties of tissues, providing resilience and elasticity. Its high concentration in synovial fluid helps lubricate joints, while its presence in other tissues supports cellular activities and tissue integrity.