What are the lymph nodes made out of?

The lymph nodes are made up of lymphoid tissue, which is a type of connective tissue that contains a large number of lymphocytes, macrophages, and other immune cells. The lymph nodes are surrounded by a capsule of connective tissue, and they are divided into two main compartments: the cortex and the medulla. The cortex is the outer compartment of the lymph node, and it contains the lymphoid follicles. The lymphoid follicles are small, round structures that contain a large number of lymphocytes. The medulla is the inner compartment of the lymph node, and it contains the medullary cords. The medullary cords are strands of connective tissue that connect the lymphoid follicles.