Lymph Node

Lymph Node

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  Lymph 4X
  A: Lymphatic nodules or follicles have a dark staining cortex and a light staining medulla where the actively dividing B-lymphocytes are located
  
  B: Cortex of the lymph node contains the lymph nodules
  
  C: Medulla of the lymph node contains the medullary cords;extensions of dense lymphatic tissue, and medullary sinuses which contains lymph, lymphocytes, macrophages, and granulocytes.
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  Lymph 20X
  A: Lymph Nodule
  
  B: Germinal center is the light staining center portion of the lymph nodule. The actively dividing B cells are found here
  
  C: Mantle zone or just mantle is a dark staining ring around the germinal center where memory cells are usually located
  
  D: Collagenous capsule that surrounds the entire lymph node. DCCTRA
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  Lymph 40X
  A: Germinal Center
  
  B: Mantle Zone
  
  C: Capsule
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  Lymph 40X-2
  A: Medullary cords are branched extensions of dense lymphatic tissue so they stain darkly and contain B-lymphocytes
  
  B: Medullary sinuses contain lymph, lymphocytes, macrophages and granulocytes and they function to drain the lymph.