Final answer:
Lymphatic nodules form clusters called lymphoid follicles, which are the sites of formation of lymphocytes rich in B cells and T cells. They are located in various lymphoid tissues.
Step-by-step explanation:
Lymphatic nodules form clusters called lymphoid follicles. These follicles are the sites of formation of lymphocytes, with specific areas rich in B cells and T cells. They are located in lymphoid tissues such as lymph nodes, the spleen, and the respiratory and digestive tracts.