sentence: Monocytes are produced by the bone marrow from stem cell precursors called 'monoblasts'.
sentences_after: Monocytes circulate in the bloodstream for about one to three days and then typically move into tissues throughout the body. They make up three to eight percent of the leukocytes in the blood.
concept_name: monocyte
headings: Monocyte Physiology
categories: Immunology Blood cells