What does the lymphatic system transport and filter?

The lymphatic system plays a crucial role in the immune response and maintaining fluid balance in the body. It transports and filters lymph, a clear fluid that contains immune cells, proteins, and waste products, including bacteria and other pathogens. The lymphatic vessels carry this fluid away from tissues, facilitating the removal of excess fluids and debris while helping to filter out harmful substances through the lymph nodes.

This filtering process is essential for preventing infections and supporting the immune system. The lymph nodes act like checkpoints, where immune cells can monitor and respond to the presence of bacteria and other foreign invaders. Therefore, the transportation and filtration of fluid and bacteria is a primary function of the lymphatic system, highlighting its importance in keeping the body healthy and free from infections.

Other options relate to functions not primarily associated with the lymphatic system: transporting oxygen and carbon dioxide pertains to the circulatory system, food and waste are primarily managed by the digestive system, and nutrients and hormones are mainly transported by the bloodstream.