👉 A node fluid, also known as interstitial fluid or extracellular fluid, is the liquid that fills the spaces between cells and within the tissues of an organism. It constitutes a significant portion of the total body fluid, playing crucial roles in maintaining cellular function, nutrient transport, waste removal, and overall homeostasis. This fluid is a mixture of water, salts, proteins, and various organic molecules that facilitate biochemical reactions and support the structural integrity of tissues. It circulates through the body via the circulatory system, ensuring that cells receive essential nutrients and oxygen while removing metabolic waste products.
