Final answer:
Lymph nodes are small, bean-shaped organs located along the lymphatic vessels. They function as filters for the lymph, remove debris and pathogens, and play a role in immune responses and the generation of lymphocytes.
Step-by-step explanation:
A lymph node is a small, bean-shaped organ located along the lymphatic vessels. It functions as a filter for the lymph, removing debris and pathogens.
The lymph node is also the site of immune responses mediated by T cells, B cells, and accessory cells of the adaptive immune system.
Additionally, lymph nodes play a role in the generation of lymphocytes, with germinal centers containing rapidly dividing B cells surrounded by a layer of T cells and other accessory cells.