Final answer:
Mature neutrophils are more easily able to enter the circulating blood from the bone marrow than immature neutrophils due to their larger size and more developed nuclei and cytoskeleton. This allows them to pass through capillaries and navigate through the bone marrow more efficiently.
Step-by-step explanation:
Mature neutrophils are more easily able to enter the circulating blood from the bone marrow than immature neutrophils due to their size and development. Mature neutrophils are larger in size, about 10-12µm in diameter, compared to immature neutrophils. This larger size allows them to more easily pass through the narrow capillaries in the bone marrow and enter the bloodstream.
In addition, mature neutrophils have lobed nuclei, which allows them to change shape and squeeze through tiny gaps in the capillary walls. They also have a more developed cytoskeleton, which provides them with the necessary flexibility to navigate through the bone marrow and enter the bloodstream.
Overall, the size and maturity of mature neutrophils enable them to efficiently move from the bone marrow into the circulating blood, where they can then be transported to sites of infection or inflammation to carry out their immune functions.