Long term physiologic study of thoracic duct lymph and lymphocytes in rat and man.

Techniques for study of thoracic duct lymph and lymphocyte circulations in rats and in man are presented. Radiographic observations, measurements of lymph flow, lymphocyte output, blood lymphocyte level, intra-thoracic pressures and radioactive determinations in the lymph and blood of 51Cr labelled lymphocytes, indicate that the techniques are suitable for long-term study of thoracic duct circulations under physiologic conditions.