Now, to enter the bloodstream from the bone marrow, the immature red cell approaches the outer wall of small vessels (sinusoids) in the bone marrow, squeezes through a small aperture called a migration pore, and emerges into the blood.
Et luuüdist vereringesse siseneda, liginevad noored punalibled luuüdis olevate kapillaaride (sinusoidide) välisseinale ning pressivad end läbi kapillaariseintes olevate pooride verre.