The spleen is the largest organ within the lymphatic system and is jointly responsible for a properly functioning immune system. The distribution of messangers and hormones is regulated by the spleen; exhausted endocrine glands are stimulated by splenic peptides.

The spleen both stores important blood corpuscles and blood plates that are vital for blood coagulation and destroys used corpuscles. Additionally, the spleen regulates the release of messengers and hormones. Splenic peptides reach their targeted organs through the bloodstream and lymphatic system and stimulate feminine and masculine sexual hormones. Splenic peptides support the immune system during the production of vital defence cells, the “immunological memory”. After an operation on patients with severe diseases the body is not capable of producing enough defence cells. In conjunction with thymus peptides, splenic peptides increase the body’s defence cells.