👉 The firm fluid, also known as the viscous fluid or cellular fluid, is a type of fluid found within cells and the extracellular matrix. It plays a crucial role in maintaining cellular structure and function by providing a medium for the transport of nutrients, waste products, and signaling molecules. Unlike plasma, which is the liquid component of blood, the firm fluid is more viscous and is tightly bound to cells, contributing to cellular integrity and facilitating processes such as cell division and communication. This fluid is primarily composed of water, salts, and various organic molecules, including proteins and carbohydrates, which collectively contribute to its unique properties and functions within the body.
