Mr 10 Departure Betwixt Principal Lymphoid Organs Together With Secondary Lymphoid Organs

Primary Lymphoid Organs (Example: Thymus, Bone marrow, Bursa of Fabricius)

 1. The lymphoid stalk cells proliferate, differentiate together with mature

2. Contain either B cells or Tcells

3. Antigen cannot enter  in

4.They atrophy alongside age
Secondary Lymphoid Organs ( Example: Spleen, Lymph nodes, Peyers patches, Tonsils)

 1. The lymphoid cells overstep away functional

2. Contain both T together with B cells.

3. Antigen enters inwards together with stimulates the lymphoid cells

4. They increase inwards size alongside age

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