Arterial blood arrives along the capillaries carrying nutrients to the tissues, while the venous system collects the waste substances.
The interstitium is composed of a network of cells and fibres. It is where interstitium fluid flows, composed of water, proteins, mineral salts and cells of various types, including viruses and bacteria.
The lymphatic system is a drainage system working in tandem with the venous system, and its main task is to drain the interstitial fluids present in the peripheral connective tissue. If there is an increase in interstitial fluid production, the lymphatic system will maintain its equilibrium.