The lymphatic system
● Made up of an extensive network of:
○ vessels
○ glands
○ ducts
○ nodes
○ passes through almost all of the tissue in the human body, including the brain.
● Allows for the collection and transport of lymph fluid.
● Lymph fluid is made up of a variety of substances.
○ proteins, fats, salts, glucose, water, cellular debris, and white blood cells.