The bone marrow and the thymus are classified as central or primary lymphoid organs.

Authors

• Person: Janeway CA Jr, Travers P, Walport M Organization: Garland Science
  The components of the immune system - Immunobiology - NCBI - NIH

Sources

• The components of the immune system - Immunobiology - NCBI - NIH www.ncbi.nlm.nih.gov Janeway CA Jr, Travers P, Walport M · Garland Science via serper

Referenced by nodes (3)

• thymus concept
• bone marrow location
• bone marrow concept