Veterinary Immunology and Serology

SECONDARY LYMPHOID ORGANS

• The secondary lymphoid organs arise late in fetal life and persist through adult life. These organs develop well depending on antigenic stimulation to facilitate antigen trapping and development of immune response.
• The secondary lymphoid organs are
  • Lymph nodes
  • Spleen
  • Cutaneous immune system
  • Mucosal immune system
  • Bone marrow