What is the Importance of the Circulatory System in Cancer?
The circulatory system plays a dual role in cancer. On one hand, it supplies nutrients and oxygen to cells, including cancer cells, enabling tumor growth. On the other hand, it is a pathway for metastasis, the spread of cancer cells from the primary site to other parts of the body. Treatments like chemotherapy and targeted therapy are often administered through the bloodstream to reach cancer cells throughout the body.