Monocytes remains in the circulation for: March 2005
Ans. A: 1-3 daysMonocytes enter the circulation from the bone marrow and remains in circulation for about 72 hours. They then enter the tissues and become tissue macrophages. The tissue macrophages include Kupffer cells of liver, pulmonary alveolar macrophages and microglia in the brain
1-3 days
24 hours
12 hours
6 hours