The Fate of Lymph-Borne Immunoblasts
The efferent lymph from a single lymph node of a sheep consists of small lymphocytes, the occasional eosinophil and a background resting level of 2% of immunoblasts. About three days after antigenic stimulation of the lymph node, by injecting, for instance a bacterial suspension subcutaneously into the drainage area of the node, the output of lymphocytes has doubled and immunoblasts constitute up to 40% of that output (1). Similar basophilic blast cells form up to 15% of the cells in the thoracic duct lymph of rats about three days after antigen has been injected subcutaneously to the drainage area of superficial nodes which contribute their efferent lymph to the thoracic duct (2).
KeywordsLamina Propria Thoracic Duct Small Lymphocyte Brucella Abortus Superficial Node
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