What is the primary function of the lymphatic system?

The primary function of the lymphatic system is to transport lymph and defend against pathogens. The lymphatic system is a crucial component of the immune system, as it plays a key role in transporting lymph, a fluid that contains infection-fighting white blood cells throughout the body. This system helps maintain fluid balance in tissues and facilitates the movement of lymphocytes, which are essential for immune responses.

In addition to its role in transporting lymph, the lymphatic system also includes lymph nodes and other structures that filter pathogens and foreign substances, allowing the body to identify and eliminate threats to health. This dual function of transportation and defense makes the lymphatic system vital for protecting the body against infections and diseases.