This article is the second in a six-part series about the lymphatic system. It discusses the role of the lymphoid organs, which is to develop and provide immunity for the body. The primary lymphoid ...

This article, the first in a six-part series, gives an overview of the lymphatic system, which circulates lymph fluid around the body to drain tissue, transport fat and activate immune responses This ...

Research over the years has provided insight into this organ's structure and various functions. As essential components of an effective adaptive immune system, the thymus develops responsive T ...

Each part of the digestive system has a function. Find out more with Bitesize. For students between the ages of 11 and 14.