ABSTRACT
At the end of this chapter you should be able to: • Understand the difference between primary and
secondary lymphoid tissue and give examples of each.
• Describe the genesis of T and B lymphocytes. • Describe the microanatomical structure of a
lymph node. • Understand the difference between a small
lymphocyte and a lymphoblast. • Give some criteria by which T and B
lymphocytes might be differentiated.
