Clinical Laboratory Hematology 3rd Edition by Shirlyn McKenzie, Lynne Williams

Exercise 30

Segmented neutrophils are more capable of egressing from the bone marrow into the peripheral blood than myelocytes because: (Objective 2)
A) mature neutrophils more easily deform through the small pore diameter in endothelial cells lining the marrow sinusoids
B) mature neutrophils secrete a cytokine that enables them to adhere to endothelial cells of the marrow sinusoids
C) there is a higher concentration of mature neutrophils in the bone marrow but myelocytes are rare d. only neutrophils possess the secondary granules required for chemotaxis