Anatomical lashes, also known as CILIA (5 letters), are microscopic hairs that line the surface of many cells in the body. They are used to move particles and fluids away from the cell, as well as to provide protection from pathogens. CILIA are found in the respiratory tract, the digestive system, and the reproductive system. They are also found in the eyes, where they help to keep the surface of the eye clean and moist.