In which of the following sites do lymphocytes become immunocompetent?
Germinal center of secondary lymphoid nodules
White pulp of the spleen
Thymic coex
Red pulp of the spleen
T lymphocytes mature and become immunocompetent in the coex of the thymus, B lymphocytes mature and become immunocompetent in the bone marrow. After an antigenic challenge, lymphocytes proliferate and differentiate in various lymphoid tissues
Systemic histology