👉 The defence fluid, primarily composed of lymph, is a critical component of the body's immune system. It circulates through the lymphatic system, which includes lymph nodes, vessels, and organs such as the spleen and thymus. When the body detects an invader, like a virus or bacteria, the defence fluid carries immune cells, such as lymphocytes and macrophages, to the site of infection. These cells identify and neutralize pathogens, helping to prevent or combat infections. The defence fluid also plays a role in removing cellular debris and waste products from tissues, contributing to overall immune function and maintaining homeostasis.
