Lymph is called extracellular fluid because it resides outside of cells. According to the reference: Lymph does not travel inside cells but travels free of the cells. It lies outside the cells; hence it is called extracellular fluid. (03-Jul-2022)
Understanding Extracellular Fluid
Extracellular fluid (ECF) is any body fluid outside of cells. This is in contrast to intracellular fluid, which is found inside cells. The major component of ECF is interstitial fluid, which surrounds cells directly. Lymph is essentially interstitial fluid that has entered lymphatic vessels.
Lymphatic System and Lymph
- The lymphatic system is a network of vessels, tissues, and organs that help rid the body of toxins, waste, and other unwanted materials.
- Lymph is a fluid that circulates throughout the lymphatic system.
- Lymph is derived from blood plasma and contains white blood cells, proteins, fats, and waste products.
- Lymph travels through lymphatic vessels, which are similar to blood vessels.
- Lymph nodes filter lymph and remove bacteria, viruses, and other harmful substances.
- Lymph eventually returns to the bloodstream.
Key Properties
- Lymph is located outside the cells.
- It is part of the extracellular fluid.
- It originates from blood plasma and interstitial fluid.
- It transports immune cells and waste products.
