👉 The subfluid, also known as the subcapillary fluid or interstitial fluid, is a component of the fluid dynamics within tissues. It exists between the capillaries and the cells, forming a dynamic interface that plays a crucial role in the exchange of nutrients, gases, and waste products. This fluid is a mixture of plasma proteins, water, and various solutes, including ions and small molecules. The subfluid's movement is driven by osmotic gradients and pressure differences, facilitating efficient cellular function and maintaining tissue homeostasis. Understanding the subfluid is essential in fields like physiology, pathology, and biomedical engineering, as it impacts processes such as inflammation, edema, and tissue repair.
