when granulocytes in the circulation were labeled with diisopropylfluorophosphate and granulocytosis was induced later by the intravenous administration of cortisol , the rate of decline of granulocyte specific activity was increased , indicating that the blood pool was being diluted at an accelerated rate by unlabeled cells entering from the bone marrow .
C0018183
circulation
C0005953
bone marrow