When fluid is collected by the lymphatic system, it is returned to what system?
Lymphatic fluid is a tissue fluid leaked out of capillaries
Lymph is a fluid leaked out of capillaries. Capillaries are one cell thick. Capillaries distribute blood to tissues. The leaked fluid lymph is collected in lymph vessels. The lymph vessels carry lymphatic fluid and pumps it through lymphatic hearts once again in circulatory system. This keeps volume of circulating fluid constant.