In Chinese medicine the Spleen is the primary organ of digestion. It receives the pure products of digestion of food (by the Stomach and Intestine) and transforms it into essential energy, which it is also responsible for raising to the Lung. The Spleen also transforms and moves Water around the body, corresponding to some of the functions of the lymphatic system. The Spleen rules the muscles, connective tissue, fat tissue and and the four limbs; their power depends on its strong function. Harmonious Spleen is reflected in the five senses and the appearance and sensitivity of the mouth, especially the lips and mouth cavity.