Talk:SH Practical - Lymphatic Structure and Organs

• 2013 Practical Support page

Normal peripheral blood:

• 60 - 80% of lymphocytes are T cells
• 10 - 15% are B cells
• remainder lack both B and T cell markers (Natural killer cells, null cells).

T cell subpopulations defined by antigenic markers

• CD4+ (helper)
• CD8+ (suppressor)
• killer (cytotoxic)
• memory cells

Links: MALT | GALT