👉 The surrounding fluid, also known as the interstitial fluid or extracellular fluid, is a vital component of biological systems. It fills the spaces between cells and within the cavities of tissues, playing a crucial role in maintaining cellular function and homeostasis. This fluid is primarily composed of water, but also contains electrolytes, proteins, glucose, and waste products. It facilitates the exchange of nutrients, gases, and waste between cells and their environment, ensuring cells receive essential substances while expelling metabolic byproducts. In the context of fluid dynamics, the surrounding fluid's movement and properties significantly impact cellular behavior, signaling pathways, and overall tissue health.
