<unk> s contain large cytoplasmic granules which obscure the cell nucleus under the microscope when stained. However, when unstained, the nucleus is visible and it usually has two lobes. The mast cell, another granulocyte, is similar in appearance and function.<unk> oth cell types store histamine, a chemical that is secreted<unk> y the cells when stimulated. However, they arise from different<unk> ranches of hematopoiesis, and mast cells usually do not circulate in the<unk> lood stream,<unk> ut instead are located in connective tissue. Like all circulating granulocytes,<unk> s can<unk> e recruited out of the<unk> lood into a tissue when needed.
Basophil
Monocyte
Prolymphocyte
Thymocyte
Podocyte
Mast cell
Dendritic cell
Natural killer cell