1. Organization of Immune System
  • All lymphoid cells originate in the marrow
    • B-cells mature in the marrow
    • T-cells mature in the thymus
  • Primary Lymphoid Organs:
    • Thymus
    • Marrow
  • Secondary Lymphoid Organs:
    • Lymph nodes
    • Lymph nodes have B- and T-cell zones
    • Spleen
    • Mucosa-associated lymphoid tissue (MALT)
      • Mucosa-associated lymphoid tissue (MALT) includes gut- associated lymphoid tissue (GALT) as well as conjunctiva- associated lymphoid tissue (CALT).
Top