Lymph is a fluid similar to plasma but colorless and with fewer proteins. It forms when plasma, proteins, and blood cells escape through pores in the capillary walls into the intercellular spaces in tissues.
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Lymph is a colorless fluid that circulates through the lymphatic system, a crucial part of the immune system. It is formed from interstitial fluid, which bathes the body’s tissues, providing nutrients and removing waste. Interstitial fluid, along with dissolved substances and white blood cells, enters lymphatic vessels and becomes lymph. Lymphatic vessels converge into lymph nodes, where immune cells can identify and combat pathogens. From there, lymph is returned to the bloodstream. The lymphatic system aids in immune surveillance, fluid balance, and fat absorption. Lymph formation and circulation contribute to the body’s defense against infections and maintenance of homeostasis.